Providers
All 14 in CA
HAMID TAVAKOLI ZADEH, M.D.
NPI 1043497860, individual, Imperial, CA, Obstetrics & Gynecology
4
Evidence tier
structure or single-organization volume
- Hours beyond a day in 1 month, but with up to 1224 patients a month across 8 billing organizations, which points to a supervising clinician on the claims rather than one person's hours.
- Records needed.
- Medicaid dollars per patient on code 51798 ($94 per patient-month) sit in the top 5% of every provider billing that code.
score 55 of 100, rank 7825, $1.1M 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 |
|---|---|---|---|---|---|---|---|---|---|
| Jan 2018 | More hours than a day holds at a conservative unit price | 18.7 | 74.4 | 49.6 | 66.8 | 1224 | 8 | 99201 99202 99204 99211 99212 99213 99214 99215 99232 | $158K |
National provider registry
From the CMS NPPES Registry, refreshed daily.
| Name | HAMID TAVAKOLI ZADEH, M.D. |
| Type | Individual |
| Status | Active |
| NPI issued | January 23, 2008, last updated November 21, 2025 |
| Practice location | 2435 MARSHALL AVE, Imperial, CA 92251-9599, 760-550-6327 |
| Specialties | Obstetrics & Gynecology (207V00000X, primary, license A101245 CA) |
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 | |
|---|---|---|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | $799K | 17% | $86 | $60 (top 5% from $133) | 76th percentile | |
| 51798 | Ultrasound measurement of bladder capacity after voiding | $795K | 17% | $94 | $7.53 (top 5% from $35) | 99th percentile | |
| 99213 | Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | $615K | 13% | $54 | $44 (top 5% from $110) | 64th percentile | |
| T1015 | Medicaid service code | $398K | 9% | $148 | $182 (top 5% from $488) | 36th percentile | |
| 59400 | Medicaid service code | $262K | 6% | $2K | $2K (top 5% from $3K) | 36th percentile | |
| 59409 | Medicaid service code | $221K | 5% | $396 | $637 (top 5% from $1K) | 11th percentile | |
| 76856 | Complete ultrasound scan of pelvis | $193K | 4% | $76 | $37 (top 5% from $154) | 78th percentile | |
| 76830 | Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina | $192K | 4% | $77 | $54 (top 5% from $126) | 69th 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 |
|---|---|---|---|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | 117 | 47 | $8K | $175 | $92 | 1.9x | 2.2x (90th percentile 3.8x) |
| 99214 | Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | 78 | 41 | $7K | $225 | $123 | 1.8x | 2.3x (90th percentile 3.8x) |
| 57160 | Fitting and insertion of vaginal support device | 28 | 12 | $2K | $107 | $74 | 1.4x | 3.1x (90th percentile 5.4x) |
| 99203 | New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | 13 | 13 | $1K | $225 | $110 | 2.0x | 2.4x (90th percentile 3.9x) |
| Q0091 | Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory | 14 | 14 | $644 | $61 | $46 | 1.3x | 2.3x (90th percentile 3.8x) |
| G0101 | Cervical or vaginal cancer screening; pelvic and clinical breast examination | 14 | 14 | $554 | $75 | $40 | 1.9x | 2.7x (90th percentile 4.3x) |
| 51798 | Ultrasound measurement of bladder capacity after voiding | 44 | 33 | $400 | $125 | $12 | 10.4x | 5.0x (90th percentile 11.5x) |
| 81003 | Automated urinalysis test | 73 | 33 | $161 | $25 | $2 | 11.4x | 4.6x (90th percentile 12.7x) |
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
14 providers in Imperial County, CA carry an indicator in the public record, with $20.1M at stake between them. The most common is more hours than a day holds, on 10 of them, followed by part of a provider network on 3. 1 is tier 1: documented action, then payment.
| tier | provider | at stake | why |
|---|---|---|---|
| 1 | JAVAD AGHALOO EL Centro, CA, ranked 233 | $23K |
|
| 3 | ARIA HOSPICE LLC EL Centro, CA, ranked 1163 | $458K |
|
| 3 | ASSISTING HANDS HEALTH CARE EL Centro, CA, ranked 1768 | $0 |
|
| 3 | IMPERIAL CARE LLC EL Centro, CA, ranked 3534 | $0 |
|
| 4 | AMEEN ALSHAREEF EL Centro, CA, ranked 7494 | $4.0M |
|
| 4 | VISHWA KAPOOR EL Centro, CA, ranked 7604 | $2.6M |
|
| 4 | BRIAN TYSON EL Centro, CA, ranked 8360 | $6.3M |
|
| 4 | TIEN VO EL Centro, CA, ranked 8458 | $4.0M |
|
Recent enforcement in CA
All releasesDepartment of Justice and HHS-OIG releases for this state, newest first. Each opens in a new tab.
DOJPleaded guiltyAug 27, 2026
Anaheim Woman Pleads Guilty to Submitting More Than $2.2 Million in Fraudulent Hospice Care Claims to Medicare
Galbraith submitted approximately $2,266,694 in claims to Medicare for hospice services for beneficiaries who did not have a terminal illness with a life expectancy of six months or less, and Medicare paid her company approximately $2,140,606.
DOJCivil settlementAug 26, 2026
DermTech Inc. to Pay Up to $5M to Resolve Allegations It Submitted False Claims to Medicare for Unreliable Skin Cancer Tests
DermTech Inc. submitted claims to Medicare for skin cancer tests conducted with an unvalidated positive control range and for tests lacking sufficient patient RNA, and did not retract results or adequately refund Medicare.
DOJCivil settlementAug 26, 2026
DermTech Inc. to Pay Up to $5M to Resolve Allegations It Submitted False Claims to Medicare for Unreliable Skin Cancer Tests
DermTech Inc. billed Medicare for skin cancer tests conducted using an unvalidated positive control range and for tests with insufficient patient RNA, and did not retract the results or adequately refund Medicare.
DOJCivil settlementAug 24, 2026
Medicare Advantage Provider Monogram Health Agrees to Pay $2.4 Million to Settle False Claims Act Lawsuit
Monogram knowingly submitted diagnosis codes in four HCCs that were not clinically accurate, not supported by medical record documentation, and/or did not require or affect patient care, inflating Medicare Advantage beneficiaries' risk scores and causing CMS to make higher capitated payments to Medicare Advantage Organizations.
DOJCivil settlementAug 24, 2026
Medicare Advantage Provider Monogram Health Agrees to Pay $2.4M to Settle False Claims Act Suit
Monogram Health knowingly submitted diagnosis codes within four HCCs that were not clinically accurate, not supported by medical record documentation, and/or did not require or affect patient care, inflating Medicare Advantage beneficiaries' risk scores and causing CMS to make higher capitated payments to MAOs.
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.