2026 NPPES data Medical Physician Assistant NPI 1538442736 PA-C
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KATHERINE MARTIN, PA-C

Medical Physician Assistant in HASTINGS, Michigan. 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
713
Medicare Part D claims · 186 beneficiaries · Medical Physician Assistant avg: 1K

What the federal data shows

KATHERINE MARTIN, PA-C filed 713 Medicare Part D claims in 2023 as a Medical Physician Assistant in HASTINGS, Michigan.

713
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.

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

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

713 Top 29% higher than 71% 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

What does the federal data show about KATHERINE MARTIN, PA-C?

Quality data not reported

NPI registry status

Active

Issued 09/23/2011

NPI 1538442736

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

713 34% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

Specialty distribution in Michigan

How Medical Physician Assistant compares to other specialties among Michigan providers

Michigan providers

Medical Physician Assistant share within Michigan

1. Medical Physician Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Medical Physician Assistant share within Michigan

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).

KATHERINE MARTIN, PA-C appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PA-C credentials at 1108 W STATE ST STE 3, HASTINGS, MI, 49058, with a listed phone of (269) 945-0922. NPI 1538442736 was issued on 09/23/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MARTIN 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 713 prescription claims written by this provider, covering 186 Medicare beneficiaries and totaling roughly $55K 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.

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

1108 W STATE ST STE 3
HASTINGS, MI 49058

Provider Details

NPI 1538442736
Specialty Medical Physician Assistant
Credentials PA-C
Gender Female
NPI Issued 09/23/2011

License & disciplinary context — Michigan MI-BOM 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 ~41K Michigan medical licensees in 2023 — they are NOT specific to KATHERINE MARTIN, PA-C. To verify KATHERINE MARTIN, PA-C's current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases

MI-BOM 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 Michigan 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.

713
Total Claims
$55K
Total Drug Cost
186
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,572
Total Day Supply
44,831
Generic Drug Cost
$14K
Antibiotic Claims
34

Patient Demographics

Average Patient Age
71.0 years
Avg HCC Risk Score
0.99
Gender Split
58% female / 42% male
Age Distribution
<65: 27, 65-74: 88, 75-84: 54, 85+: 17

Top Prescribed Drugs (Medicare Part D)

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

What KATHERINE MARTIN, 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
Atorvastatin Calcium
69
Lisinopril
41
Simvastatin
31
Losartan Potassium
22
Fluticasone Propionate
19
Hydrochlorothiazide
17
Levothyroxine Sodium
16
Albuterol Sulfate Hfa
Albuterol Sulfate
15
Omeprazole
15
Amlodipine Besylate
14

* 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 KATHERINE MARTIN, 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

KATHERINE MARTIN, PA-C's 713 claims are below the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in Michigan

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

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

Frequently Asked Questions

What is KATHERINE MARTIN, PA-C's specialty?
KATHERINE MARTIN, PA-C specializes in Medical Physician Assistant and practices in HASTINGS, Michigan. Credentials: PA-C.
How much does KATHERINE MARTIN, PA-C prescribe under Medicare Part D?
In 2023, KATHERINE MARTIN, PA-C wrote 713 Medicare Part D claims totaling $55K in drug costs for 186 beneficiaries.
Where is KATHERINE MARTIN, PA-C located?
KATHERINE MARTIN, PA-C is located at 1108 W STATE ST STE 3, HASTINGS, MI, 49058. Phone: (269) 945-0922.
What is KATHERINE MARTIN, PA-C's NPI number?
KATHERINE MARTIN, PA-C's National Provider Identifier (NPI) is 1538442736, issued on 09/23/2011.
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 KATHERINE MARTIN, PA-C prescribe most often?
Based on 2023 Medicare Part D data, KATHERINE MARTIN, PA-C's most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Simvastatin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KATHERINE MARTIN, PA-C accept Medicare?
KATHERINE MARTIN, PA-C appears in CMS Medicare data with 713 Part D claims and 186 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KATHERINE MARTIN, PA-C's credentials?
KATHERINE MARTIN, PA-C's NPI is 1538442736 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