NPI registry status
Active
2026 NPPES data Critical Care Medicine (Obstetrics & Gynecology) Physician NPI 1437211687 D.O.
Verify on CMS → Cheryl Geer, D.O.
Critical Care Medicine (Obstetrics & Gynecology) Physician in Camarillo, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 34 in Critical Care Medicine (Obstetrics & Gynecology) Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
206
Medicare Part D claims · 43 beneficiaries · Critical Care Medicine (Obstetrics & Gynecology) Physician avg: 145
Generic prescribing
63%
generic claims · 37% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$117.6
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Cheryl Geer, D.O. filed 206 Medicare Part D claims in 2024 as a Critical Care Medicine (Obstetrics & Gynecology) Physician in Camarillo, California, prescribing 63% generic.
- 206
- Part D claims, 2024
- 63%
- generic prescribing
- $117.6
- industry payments (Sunshine Act)
- ≥48th
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Cheryl Geer, D.O.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1437211687), first enumerated 12/14/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 206 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- Reported
Industry payment transparency
$117.6 in reported industry payments (1 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
California statewide board action statistics are published annually — these figures describe aggregate state activity, not Cheryl Geer, D.O.'s individual license status. Verify directly with the state medical board.
Source: MBC annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1437211687 · Critical Care Medicine (Obstetrics & Gynecology) Physician
NPI-10 · ENUM-LEGACY · TAX-TRACE · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1437211687
- ENUM-LEGACY 2006
- TAX-TRACE 34
- RX-LIGHT 206
- BOOK-THIN 6 in California
- PHOTO-ENUM Lillian Emlet, MD · 2006
Cheryl Geer, D.O.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
206 ≥ 48th percentile 48% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
◑
Board-eligible specialty (heuristic, not verified)
Cheryl Geer, D.O. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Cheryl Geer, D.O.?
Quality data not reportedPrimary specialty
Critical Care Medicine (Obstetrics & Gynecology) Physician
Medicare Part D claims
206 42% vs specialty avg
Specialty distribution in California
How Critical Care Medicine (Obstetrics & Gynecology) Physician compares to other specialties among California providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Critical Care Medicine (Obstetrics & Gynecology) Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1437211687 |
|---|---|
| Specialty | Critical Care Medicine (Obstetrics & Gynecology) Physician |
| Credentials | D.O. |
| Gender | Female |
| NPI Issued | 12/14/2006 |
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Cheryl Geer, D.O.. Source: openpaymentsdata.cms.gov.
Total received
$118
Largest payer
MAYNE PHARMA COMMERCIAL LLC
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
License & disciplinary context - California MBC 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 - they are NOT specific to Cheryl Geer, D.O.. To verify Cheryl Geer, D.O.'s current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases
MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Above average
Cheryl Geer, D.O. - brand share 37.0%
Critical Care Medicine (Obstetrics & Gynecology) Physician average
37% brand-name claims vs 63% generic, on 206 2024 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
206
Total Claims
$20K
Total Drug Cost
43
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 391.8
- Total Day Supply
- 11,031
- Brand vs Generic
- 37% brand / 63% generic
- Brand Drug Cost
- $13K
- Generic Drug Cost
- $7K
Patient Demographics
- Average Patient Age
- 71.7 years
- Avg HCC Risk Score
- 0.61
- Gender Split
- 100% female / 0% male
- Age Distribution
- <65: 0, 65-74: 28, 75-84: 15, 85+: 0
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Cheryl Geer, D.O. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Estradiol (Twice W…
Estradiol (Twice Weekly)
55 claims
- Progesterone
Progesterone
48 claims
- Imvexxy
Imvexxy
32 claims
- Misoprostol 12
Misoprostol
12 claims
| Drug | Claims |
|---|---|
| Estradiol (Twice Weekly) Estradiol | 55 |
| Progesterone Progesterone, Micronized | 48 |
| Imvexxy Estradiol | 32 |
| Misoprostol | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Critical Care Medicine (Obstetrics & Gynecology) Physician in CA →
All providers in California →
Compare specialties →
Critical Care Medicine (Obstetrics & Gynecology) Physician Overview
How Cheryl Geer, D.O. fits within the Critical Care Medicine (Obstetrics & Gynecology) Physician landscape nationally.
34
Critical Care Medicine (Obstetrics & Gynecology) Physician Providers in US
18
States with Critical Care Medicine (Obstetrics & Gynecology) Physician
145
Avg Claims per Provider
Cheryl Geer, D.O.'s 206 claims are above the specialty average of 145.
Nationwide Critical Care Medicine (Obstetrics & Gynecology) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Geer, both outside California so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Critical Care Medicine (Obstetrics & Gynecology) Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Geer.
One of 6 Critical Care Medicine (Obstetrics & Gynecology) Physician providers enrolled in California, 5 are shown here.
Frequently Asked Questions
What is Cheryl Geer, D.O.'s specialty? ▼
Cheryl Geer, D.O. specializes in Critical Care Medicine (Obstetrics & Gynecology) Physician and practices in Camarillo, California. Credentials: D.O..
How much does Cheryl Geer, D.O. prescribe under Medicare Part D? ▼
In 2024, Cheryl Geer, D.O. wrote 206 Medicare Part D claims totaling $20K in drug costs for 43 beneficiaries.
Where is Cheryl Geer, D.O. located? ▼
Cheryl Geer, D.O. is located at 445 ROSEWOOD AVE STE C, Camarillo, CA, 93010. Phone: (805) 482-2634.
What is Cheryl Geer, D.O.'s NPI number? ▼
Cheryl Geer, D.O.'s National Provider Identifier (NPI) is 1437211687, issued on 12/14/2006.
Does Cheryl Geer, D.O. prescribe more brand-name or generic drugs? ▼
Cheryl Geer, D.O.'s prescribing is 37% brand-name and 63% generic drugs by claim count, with $13K in brand drug costs.
How many Critical Care Medicine (Obstetrics & Gynecology) Physician providers are there in the US? ▼
There are 34 Critical Care Medicine (Obstetrics & Gynecology) Physician providers across 18 states in the US. The average Critical Care Medicine (Obstetrics & Gynecology) Physician provider writes 145 Medicare Part D claims per year.
What drugs does Cheryl Geer, D.O. prescribe most often? ▼
Based on 2024 Medicare Part D data, Cheryl Geer, D.O.'s most frequently prescribed drugs include Estradiol (Twice Weekly), Progesterone, Imvexxy. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Cheryl Geer, D.O. accept Medicare? ▼
Cheryl Geer, D.O. appears in CMS Medicare data with 206 Part D claims and 43 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Cheryl Geer, D.O.'s credentials? ▼
Cheryl Geer, D.O.'s NPI is 1437211687 with credentials D.O.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.