2026 NPPES data Medical Physician Assistant NPI 1609847557 PA
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JOHN ABSHIER, PA

Medical Physician Assistant in FT SAM HOUSTON, Texas. 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
6K
Medicare Part D claims · 953 beneficiaries · Medical Physician Assistant avg: 1K
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: JOHN ABSHIER, PA is a Medical Physician Assistant ([object Object]) practicing in FT SAM HOUSTON, Texas with a Medicare Part D prescribing footprint of 6K claims across 953 beneficiaries — 7% brand-name prescribing .

What stands out: JOHN ABSHIER, PA filed 6,498 Medicare Part D claims in 2023 across FT SAM HOUSTON, Texas. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

JOHN ABSHIER, PA at a glance

Quality data not reported

NPI registry status

Active

Issued 01/30/2006

NPI 1609847557

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

6,498 503% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

Specialty distribution in Texas

How Medical Physician Assistant compares to other specialties among Texas providers

Texas providers

Medical Physician Assistant share within Texas

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

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).

JOHN ABSHIER, PA is a Medical Physician Assistant provider practicing in FT SAM HOUSTON, Texas, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PA. NPI: 1609847557. 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.

JOHN ABSHIER, PA appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PA credentials at BAMC 3851ROGER BROOKE DR.MCHE-QD (CRED), FT SAM HOUSTON, TX, 78234, with a listed phone of (210) 916-5000. NPI 1609847557 was issued on 01/30/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ABSHIER 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 6,498 prescription claims written by this provider, covering 953 Medicare beneficiaries and totaling roughly $412K in drug spend, split 7% brand-name and 93% generic by claim count, with an opioid prescribing rate of 1.5%. 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

BAMC 3851ROGER BROOKE DR.MCHE-QD (CRED)
FT SAM HOUSTON, TX 78234

Provider Details

NPI 1609847557
Specialty Medical Physician Assistant
Credentials PA
Gender Male
NPI Issued 01/30/2006

License & disciplinary context — Texas TMB 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 ~77K Texas medical licensees in 2023 — they are NOT specific to JOHN ABSHIER, PA. To verify JOHN ABSHIER, PA's current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases

TMB 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 Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Generic-heavy

JOHN ABSHIER, PA — brand share 7.0%
Specialty average (est.)

7% brand-name claims vs 93% generic, on 6,498 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.

6,498
Total Claims
$412K
Total Drug Cost
953
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
15,853
Total Day Supply
466,021
Brand vs Generic
7% brand / 93% generic
Brand Drug Cost
$304K
Generic Drug Cost
$108K
Opioid Claims
98 (1.5% rate)
Antibiotic Claims
133

Patient Demographics

Average Patient Age
73.8 years
Avg HCC Risk Score
0.87
Gender Split
48% female / 52% male
Age Distribution
<65: 25, 65-74: 549, 75-84: 311, 85+: 68

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Atorvastatin Calcium
506
Levothyroxine Sodium
370
Lisinopril
273
Amlodipine Besylate
239
Losartan Potassium
232
Pantoprazole Sodium
198
Rosuvastatin Calcium
191
Metoprolol Succinate
159
Hydrochlorothiazide
157
Montelukast Sodium
153

* 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 JOHN ABSHIER, PA 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

JOHN ABSHIER, PA's 6,498 claims are above the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in Texas

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

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

Frequently Asked Questions

What is JOHN ABSHIER, PA's specialty?
JOHN ABSHIER, PA specializes in Medical Physician Assistant and practices in FT SAM HOUSTON, Texas. Credentials: PA.
How much does JOHN ABSHIER, PA prescribe under Medicare Part D?
In 2023, JOHN ABSHIER, PA wrote 6,498 Medicare Part D claims totaling $412K in drug costs for 953 beneficiaries.
Where is JOHN ABSHIER, PA located?
JOHN ABSHIER, PA is located at BAMC 3851ROGER BROOKE DR.MCHE-QD (CRED), FT SAM HOUSTON, TX, 78234. Phone: (210) 916-5000.
What is JOHN ABSHIER, PA's NPI number?
JOHN ABSHIER, PA's National Provider Identifier (NPI) is 1609847557, issued on 01/30/2006.
Does JOHN ABSHIER, PA prescribe more brand-name or generic drugs?
JOHN ABSHIER, PA's prescribing is 7% brand-name and 93% generic drugs by claim count, with $304K in brand drug costs.
Does JOHN ABSHIER, PA prescribe opioids?
Yes, JOHN ABSHIER, PA had 98 opioid claims in 2023 with an opioid prescribing rate of 1.5%.
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 JOHN ABSHIER, PA prescribe most often?
Based on 2023 Medicare Part D data, JOHN ABSHIER, PA's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JOHN ABSHIER, PA accept Medicare?
JOHN ABSHIER, PA appears in CMS Medicare data with 6,498 Part D claims and 953 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOHN ABSHIER, PA's credentials?
JOHN ABSHIER, PA's NPI is 1609847557 with credentials PA. 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