Providers
All 9 in MD
WALTER LEWIS TOLLER
NPI 1760060636, individual, Baltimore, MD, Nurse Practitioner
4
Evidence tier
structure or single-organization volume
- Hours beyond a day in 2 months, but with up to 1173 patients a month, which points to a supervising clinician on the claims rather than one person's hours.
- Records needed.
- Medicaid dollars per patient on code 99214 ($152 per patient-month) sit in the top 5% of every provider billing that code.
score 55 of 100, rank 7947, $480K at stake
Hours billed per day
Medicaid billing converted into hours of hands-on care per day. The lower bound counts one unit per claim line and needs no price; the other two divide dollars by a unit price, the conservative one at 1.5 times the price. The clinician on the claim may be a supervisor under state rules, so billing organizations are counted too.
| month | what was found | hours per day, lower bound | hours per day, at price | hours per day, conservative | per working day | patients | billing organizations | codes | paid |
|---|---|---|---|---|---|---|---|---|---|
| Feb 2023 | More hours than a day holds, even counting one unit per claim line | 25.8 | 14.8 | 9.8 | 13.8 | 621 | 1 | 90792 90833 90834 99205 99214 99309 | $63K |
| Jun 2024 | More hours than a day holds, even counting one unit per claim line | 31.1 | 19.4 | 12.9 | 19.4 | 1173 | 1 | 90792 90832 90833 90834 99205 99214 99305 99308 99309 | $67K |
National provider registry
From the CMS NPPES Registry, refreshed daily.
| Name | WALTER LEWIS TOLLER |
| Type | Individual |
| Status | Active |
| NPI issued | March 31, 2021, last updated September 29, 2021 |
| Practice location | 2439 E LAFAYETTE AVE, Baltimore, MD 21213-2562, 410-530-6612 |
| Specialties | Nurse Practitioner (363L00000X, primary, license R197972 MD) |
Procedures billed
The specific codes behind the dollars. Medicaid figures come from T-MSIS (2018 to 2024) and are compared with every other provider billing the same code; Medicare figures come from the 2024 physician and supplier file and compare this provider's submitted charge with what Medicare allowed, against the usual ratio for that code.
Medicaid, largest codes
| code | what it is | paid | share | per patient-month | typical | rank among providers | |
|---|---|---|---|---|---|---|---|
| 90834 | Psychotherapy, 45 minutes | $433K | 31% | $133 | $101 (top 5% from $318) | 66th percentile | |
| 99214 | Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | $298K | 21% | $152 | $60 (top 5% from $133) | 97th percentile | |
| 90833 | Psychotherapy with evaluation and management visit, 30 minutes | $139K | 10% | $40 | $49 (top 5% from $109) | 37th percentile | |
| 90792 | Psychiatric diagnostic evaluation with medical services | $133K | 10% | $164 | $112 (top 5% from $313) | 77th percentile | |
| 99309 | Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | $119K | 9% | $68 | $21 (top 5% from $84) | 92nd percentile | |
| 99205 | New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | $102K | 7% | $201 | $128 (top 5% from $249) | 85th percentile | |
| 90832 | Psychotherapy, 30 minutes | $84K | 6% | $64 | $59 (top 5% from $239) | 56th percentile | |
| 90791 | Psychiatric diagnostic evaluation | $35K | 3% | $141 | $105 (top 5% from $228) | 79th percentile |
Medicare Part B 2024, largest codes
| code | what it is | services | beneficiaries | paid | submitted per service | allowed per service | charge to allowed | usual for this code |
|---|---|---|---|---|---|---|---|---|
| 99309 | Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 2,242 | 848 | $170K | $239 | $96 | 2.5x | 2.0x (90th percentile 3.3x) |
| 99308 | Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more | 2,316 | 991 | $116K | $220 | $65 | 3.4x | 2.0x (90th percentile 3.4x) |
| 90833 | Psychotherapy with evaluation and management visit, 30 minutes | 2,470 | 771 | $109K | $129 | $56 | 2.3x | 2.1x (90th percentile 3.5x) |
| 99305 | Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes | 818 | 810 | $76K | $244 | $118 | 2.1x | 2.0x (90th percentile 3.3x) |
| 90834 | Psychotherapy, 45 minutes | 1,005 | 312 | $58K | $160 | $77 | 2.1x | 2.0x (90th percentile 3.6x) |
| 90832 | Psychotherapy, 30 minutes | 687 | 203 | $32K | $140 | $59 | 2.4x | 2.0x (90th percentile 3.5x) |
| 90792 | Psychiatric diagnostic evaluation with medical services | 210 | 201 | $24K | $320 | $147 | 2.2x | 2.2x (90th percentile 3.9x) |
| 99483 | Assessment of and care planning for patient with impaired thought processing, typically 60 minutes | 45 | 45 | $6K | $347 | $167 | 2.1x | 1.8x (90th percentile 3.2x) |
A submitted charge many times the allowed amount is common and lawful; it matters when it is far above what other providers submit for the same code.
In this area
9 providers in Baltimore city County, MD carry an indicator in the public record, with $6.0M at stake between them. The most common is more hours than a day holds, on 4 of them, followed by named in an enforcement record on 3. 3 are tier 1: documented action, then payment.
| tier | provider | at stake | why |
|---|---|---|---|
| 1 | GUIDING LIVES Baltimore, MD, ranked 57 | $1.4M |
|
| 1 | ANOTHER CHANCE SUPPORTIVE SERVICES Baltimore, MD, ranked 67 | $874K |
|
| 1 | GUIDING LIVES Baltimore, MD, ranked 631 | $0 |
|
| 2 | ABENA ADOKO SANDO Baltimore, MD, ranked 704 | $581K |
|
| 4 | TANYA PEETE Baltimore, MD, ranked 8625 | $2.5M |
|
| 4 | MELISSA POWELL Baltimore, MD, ranked 9327 | $332K |
|
| 5 | FLORENCE EZE Baltimore, MD, ranked 11388 | $279K | |
| 5 | BALTIMORE HEALTH CARE P.C Baltimore, MD, ranked 11937 | $9K |
Recent enforcement in MD
All releasesDepartment of Justice and HHS-OIG releases for this state, newest first. Each opens in a new tab.
DOJCivil settlementMar 20, 2026
Health Care Management Corporation Agrees to Pay $4 Million to Resolve False Claims Act Allegations
CVR knowingly submitted claims to Medicare, Medicaid, and TRICARE for sclerotherapy, radiofrequency ablation, and endovenous laser ablation procedures to treat chronic venous insufficiency that were not clinically indicated and were medically unnecessary between January 1, 2010, and December 31, 2016.
DOJCivil settlementNov 20, 2025
Diagnostic Laboratory Agrees to Pay More Than $1 Million to Settle Alleged False Claims Act Violations
GTI agreed to pay $1.635 million to resolve allegations that it submitted Medicare claims for respiratory pathogen panels that were medically unnecessary or obtained through kickbacks paid under a marketing services agreement with an infection prevention company for laboratory test referrals from long-term care facilities.
DOJSentencedNov 13, 2025
Baltimore County Woman Sentenced for Impersonating Nurses and Aggravated Identity Theft
Amponsah used stolen nursing licenses and false educational and professional histories to obtain employment as a purported licensed nurse at no less than 40 facilities in Maryland that billed health care benefit programs including Medicare and Medicaid for services she provided, earning more than $145,000 in wages.
DOJPleaded guiltyAug 14, 2025
Baltimore County Woman Admits to Impersonating Nurses, Pleads Guilty to Aggravated Identity Theft
Amponsah used stolen nursing licenses and false educational and professional histories to obtain employment as a purported licensed nurse at no less than 40 facilities in Maryland, which billed health care benefit programs including Medicare and Medicaid for services she provided.
DOJCivil judgmentAug 11, 2025
United States Obtains More Than $1.4 Million Judgment Against Family Medical Practitioner for Fraudulent Billing
Akoto billed Medicare for auricular stimulation (P-Stim) devices using a code for a surgically implanted neurostimulator device, which Medicare does not reimburse as acupuncture.
Referral packet
The packet is a draft for a reviewer. It reads every public record behind this case, states what the records show with a citation for each finding, names the regulation each finding relates to, and lists the ordinary explanations to rule out first. It never asserts intent.