2026 NPPES data Gynecology Physician NPI 1851331946 M.D.
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KIM ERVIN, M.D.

Gynecology Physician in ARCATA, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
672
Medicare Part D claims · 207 beneficiaries · Gynecology Physician avg: 295

What the federal data shows

KIM ERVIN, M.D. filed 672 Medicare Part D claims in 2023 as a Gynecology Physician in ARCATA, California.

672
Part D claims, 2023

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.

KIM ERVIN, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

672 Top 31% higher than 69% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). This entry sits in this band. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board-eligible specialty (heuristic — not verified)

KIM ERVIN, M.D. 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 KIM ERVIN, M.D.?

Quality data not reported

NPI registry status

Active

Issued 06/07/2006

NPI 1851331946

Primary specialty

Gynecology Physician

Niche

3,902 US NPIs in this specialty

Medicare Part D claims

672 128% vs specialty avg

2023 prescription claims

Specialty avg: 295

Specialty distribution in California

How Gynecology Physician compares to other specialties among California providers

California providers

Gynecology Physician share within California

1. Gynecology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Gynecology Physician share within California

Specialty board-certification context

Estimated specialty board-certified rate — Gynecology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Gynecology Physician ABMS/AOA estimate

Est. board-certified rate (Gynecology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Gynecology Physician) — ABMS / AOA estimate

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).

KIM ERVIN, M.D. is a Gynecology Physician provider practicing in ARCATA, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1851331946. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

KIM ERVIN, M.D. appears in the CMS NPPES registry as a Gynecology Physician provider holding M.D. credentials at 3798 JANES RD STE 5, ARCATA, CA, 95521, with a listed phone of (707) 825-7588. NPI 1851331946 was issued on 06/07/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ERVIN most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 672 prescription claims written by this provider, covering 207 Medicare beneficiaries and totaling roughly $88K in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Gynecology Physician is a narrow specialty nationwide, with 3,902 enrolled providers across 53 states and an average of 295 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

3798 JANES RD STE 5
ARCATA, CA 95521

Provider Details

NPI 1851331946
Specialty Gynecology Physician
Credentials M.D.
Gender Female
NPI Issued 06/07/2006

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 KIM ERVIN, M.D.. To verify KIM ERVIN, M.D.'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.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

672
Total Claims
$88K
Total Drug Cost
207
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,348
Total Day Supply
37,895
Generic Drug Cost
$25K
Antibiotic Claims
25

Patient Demographics

Average Patient Age
72.6 years
Avg HCC Risk Score
0.73
Gender Split
100% female / 0% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Estradiol
177
Estradiol (Twice Weekly)
Estradiol
36
Medroxyprogesterone Acetate
34
Dotti
Estradiol
25
Clindamycin Phosphate
17
Imvexxy
Estradiol
17
Fluconazole
15
Estradiol (Once Weekly)
Estradiol
14
Clobetasol Propionate
12
Temazepam
12

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Gynecology Physician Overview

How KIM ERVIN, M.D. fits within the Gynecology Physician landscape nationally.

3,902
Gynecology Physician Providers in US
53
States with Gynecology Physician
295
Avg Claims per Provider

KIM ERVIN, M.D.'s 672 claims are above the specialty average of 295.

Nearby Gynecology Physician Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as ERVIN.

Compare Gynecology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is KIM ERVIN, M.D.'s specialty?
KIM ERVIN, M.D. specializes in Gynecology Physician and practices in ARCATA, California. Credentials: M.D..
How much does KIM ERVIN, M.D. prescribe under Medicare Part D?
In 2023, KIM ERVIN, M.D. wrote 672 Medicare Part D claims totaling $88K in drug costs for 207 beneficiaries.
Where is KIM ERVIN, M.D. located?
KIM ERVIN, M.D. is located at 3798 JANES RD STE 5, ARCATA, CA, 95521. Phone: (707) 825-7588.
What is KIM ERVIN, M.D.'s NPI number?
KIM ERVIN, M.D.'s National Provider Identifier (NPI) is 1851331946, issued on 06/07/2006.
How many Gynecology Physician providers are there in the US?
There are 3,902 Gynecology Physician providers across 53 states in the US. The average Gynecology Physician provider writes 295 Medicare Part D claims per year.
What drugs does KIM ERVIN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, KIM ERVIN, M.D.'s most frequently prescribed drugs include Estradiol, Estradiol (Twice Weekly), Medroxyprogesterone Acetate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KIM ERVIN, M.D. accept Medicare?
KIM ERVIN, M.D. appears in CMS Medicare data with 672 Part D claims and 207 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KIM ERVIN, M.D.'s credentials?
KIM ERVIN, M.D.'s NPI is 1851331946 with credentials M.D.. 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

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 (2023). 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 April 2026 (NPPES) / 2023 (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