2026 NPPES data Medical Physician Assistant NPI 1215508775 PA-C
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Martha Wilkins, PA-C

Medical Physician Assistant in Walnut Creek, 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 40,527 in Medical Physician Assistant, 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
1K
Medicare Part D claims · 167 beneficiaries · Medical Physician Assistant avg: 1K
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$274.56
11 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Martha Wilkins, PA-C filed 1,228 Medicare Part D claims in 2023 as a Medical Physician Assistant in Walnut Creek, California, prescribing 92% generic.

1K
Part D claims, 2023
92%
generic prescribing
$274.56
industry payments (Sunshine Act)

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.

Martha Wilkins, PA-C's Medicare Part D volume vs every U.S. prescriber

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

1,228 Top 22% higher than 78% 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%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). This entry sits in this band. 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

What does the federal data show about Martha Wilkins, PA-C?

Quality data not reported

NPI registry status

Active

Issued 07/06/2021

NPI 1215508775

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

1,228 14% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

Specialty distribution in California

How Medical Physician Assistant compares to other specialties among California providers

California providers

Largest specialties in California (% of in-state providers)

Behavior Technician — 17.3%Behavior Technician17.3%Marriage & Family Therapist — 5.5%Marriage & Family Therapist5.5%Student in an Organized Health Care Education/Training Program — 5%Student in an Organized Health Care Education/Training Program5%Mental Health Counselor — 3.9%Mental Health Counselor3.9%Pharmacist — 3.5%Pharmacist3.5%Clinical Social Worker — 3.1%Clinical Social Worker3.1%Medical Physician Assistant — 0.4%Medical Physician Assistant0.4%
Largest specialties in California (% of in-state providers)

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Medical Physician Assistant) — 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).

Martha Wilkins, PA-C appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PA-C credentials at 2123 YGNACIO VALLEY RD STE 200, Walnut Creek, CA, 94598, with a listed phone of (925) 926-0195. NPI 1215508775 was issued on 07/06/2021. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Wilkins 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 1,228 prescription claims written by this provider, covering 167 Medicare beneficiaries and totaling roughly $125K in drug spend, split 8% brand-name and 92% generic by claim count, with an opioid prescribing rate of 45.4%. 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.

Medical Physician Assistant is a mid-sized specialty nationwide, with 40,527 enrolled providers across 55 states and an average of 1,077 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

2123 YGNACIO VALLEY RD STE 200
Walnut Creek, CA 94598

Provider Details

NPI 1215508775
Specialty Medical Physician Assistant
Credentials PA-C
Gender Female
NPI Issued 07/06/2021

Hospital and facility affiliations

Facilities where Martha Wilkins, PA-C bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

California Spine Center A Professional Medical Corporation
Walnut Creek, CA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

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 Martha Wilkins, PA-C. Source: openpaymentsdata.cms.gov.

Total received

$275

Largest payer

Salix Pharmaceuticals, a division of Bausch Health US, 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 Martha Wilkins, PA-C. To verify Martha Wilkins, PA-C'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 · Generic-heavy

Martha Wilkins, PA-C — brand share 8.0%
Medical Physician Assistant average

8% brand-name claims vs 92% generic, on 1,228 2023 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 2023.

1,228
Total Claims
$125K
Total Drug Cost
167
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,238
Total Day Supply
35,585
Brand vs Generic
8% brand / 92% generic
Brand Drug Cost
$93K
Generic Drug Cost
$32K
Opioid Claims
558 (45.4% rate)

Patient Demographics

Average Patient Age
66.1 years
Avg HCC Risk Score
1.32
Gender Split
55% female / 45% male
Age Distribution
<65: 66, 65-74: 70, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What Martha Wilkins, PA-C prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
202
Gabapentin
130
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
100
Pregabalin
51
Morphine Sulfate Er
Morphine Sulfate
49
Cyclobenzaprine Hcl
47
Baclofen
45
Lidocaine
45
Tramadol Hcl
45
Diclofenac Sodium
40

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

Medical Physician Assistant Overview

How Martha Wilkins, PA-C fits within the Medical Physician Assistant landscape nationally.

40,527
Medical Physician Assistant Providers in US
55
States with Medical Physician Assistant
1,077
Avg Claims per Provider

Martha Wilkins, PA-C's 1,228 claims are above the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in California

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

Compare Medical Physician Assistant nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry — providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the California medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Medical Physician Assistant peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only — they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Martha Wilkins, PA-C's specialty?
Martha Wilkins, PA-C specializes in Medical Physician Assistant and practices in Walnut Creek, California. Credentials: PA-C.
How much does Martha Wilkins, PA-C prescribe under Medicare Part D?
In 2023, Martha Wilkins, PA-C wrote 1,228 Medicare Part D claims totaling $125K in drug costs for 167 beneficiaries.
Where is Martha Wilkins, PA-C located?
Martha Wilkins, PA-C is located at 2123 YGNACIO VALLEY RD STE 200, Walnut Creek, CA, 94598. Phone: (925) 926-0195.
What is Martha Wilkins, PA-C's NPI number?
Martha Wilkins, PA-C's National Provider Identifier (NPI) is 1215508775, issued on 07/06/2021.
Does Martha Wilkins, PA-C prescribe more brand-name or generic drugs?
Martha Wilkins, PA-C's prescribing is 8% brand-name and 92% generic drugs by claim count, with $93K in brand drug costs.
Does Martha Wilkins, PA-C prescribe opioids?
Yes, Martha Wilkins, PA-C had 558 opioid claims in 2023 with an opioid prescribing rate of 45.4%.
How many Medical Physician Assistant providers are there in the US?
There are 40,527 Medical Physician Assistant providers across 55 states in the US. The average Medical Physician Assistant provider writes 1,077 Medicare Part D claims per year.
What drugs does Martha Wilkins, PA-C prescribe most often?
Based on 2023 Medicare Part D data, Martha Wilkins, PA-C's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Gabapentin, Oxycodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Martha Wilkins, PA-C accept Medicare?
Martha Wilkins, PA-C appears in CMS Medicare data with 1,228 Part D claims and 167 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Martha Wilkins, PA-C's credentials?
Martha Wilkins, PA-C's NPI is 1215508775 with credentials PA-C. 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

Compiled from official public sources by the PlainDoctor editorial team.