Providers
All 9 in CA
CRISTINA GAMBOA, M.D.
NPI 1295012235, individual, Watsonville, CA, Obstetrics & Gynecology
5
Evidence tier
informational
score 31 of 100, rank 11140, $685K at stake
National provider registry
From the CMS NPPES Registry, refreshed daily.
| Name | CRISTINA GAMBOA, M.D. |
| Type | Individual |
| Status | Active |
| NPI issued | November 4, 2011, last updated April 2, 2020 |
| Practice location | 204 E BEACH ST, Watsonville, CA 95076-4809, 831-728-0222 |
| Mailing address | PO BOX 1870, Watsonville, CA 95077-1870 |
| Specialties | Obstetrics & Gynecology (207V00000X, primary, license A118272 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 | |
|---|---|---|---|---|---|---|---|
| T1015 | Medicaid service code | $13.3M | 84% | $370 | $182 (top 5% from $488) | 90th percentile | |
| 59425 | Medicaid service code | $760K | 5% | $132 | $90 (top 5% from $160) | 89th percentile | |
| 99213 | Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | $670K | 4% | $94 | $44 (top 5% from $110) | 92nd percentile | |
| H1003 | Medicaid service code | $258K | 2% | $23 | $9.14 (top 5% from $37) | 85th percentile | |
| J7307 | Medicaid service code | $137K | 1% | $808 | $827 (top 5% from $1K) | 45th percentile | |
| 99215 | Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or morehistory of abuse | $96K | 1% | $238 | $88 (top 5% from $210) | 96th percentile | |
| 96156 | Assessment of health behavior | $76K | 0% | $22 | $8.60 (top 5% from $132) | 64th percentile | |
| 99401 | Preventive counseling individual 15 min | $73K | 0% | $19 | $16 (top 5% from $46) | 57th percentile |
In this area
9 providers in Santa Cruz County, CA carry an indicator in the public record, with $6.2M at stake between them. The most common is more hours than a day holds, on 5 of them, followed by part of a provider network on 4.
| tier | provider | at stake | why |
|---|---|---|---|
| 3 | SUTTER VISITING NURSE ASSOCIATION AND HOSPICE Santa Cruz, CA, ranked 809 | $199K |
|
| 3 | HOSPICE OF SANTA CRUZ COUNTY Scotts Valley, CA, ranked 1309 | $149K |
|
| 3 | DRIFTWOOD SANTA CRUZ OPERATING COMPANY, LP Santa Cruz, CA, ranked 3140 | $0 |
|
| 3 | LAZER HOLDINGS LLC Watsonville, CA, ranked 6675 | $0 |
|
| 4 | CASSY FRIEDRICH Santa Cruz, CA, ranked 8485 | $3.6M |
|
| 4 | VICTORIA CHEW Watsonville, CA, ranked 8832 | $1.5M |
|
| 4 | MAI-KHANH BUI-DUY Watsonville, CA, ranked 9420 | $240K |
|
| 4 | ANDREW GERENRAICH Santa Cruz, CA, ranked 9556 | $116K |
|
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.