2026 NPPES data Family Medicine Physician NPI 1538129010 MD
Verify on CMS →

TAMMY BANNISTER, MD

Family Medicine Physician in HAMLIN, West Virginia. 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
4K
Medicare Part D claims · 198 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: TAMMY BANNISTER, MD is a Family Medicine Physician ([object Object]) practicing in HAMLIN, West Virginia with a Medicare Part D prescribing footprint of 4K claims across 198 beneficiaries — 10% brand-name prescribing .

What stands out: TAMMY BANNISTER, MD filed 3,948 Medicare Part D claims in 2023 across HAMLIN, West Virginia. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

TAMMY BANNISTER, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

TAMMY BANNISTER, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 03/27/2006

NPI 1538129010

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

3,948 16% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in West Virginia

How Family Medicine Physician compares to other specialties among West Virginia providers

West Virginia providers

Family Medicine Physician share within West Virginia

1. Family Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Family Medicine Physician share within West Virginia

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Family Medicine 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).

TAMMY BANNISTER, MD is a Family Medicine Physician provider practicing in HAMLIN, West Virginia, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1538129010. 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.

TAMMY BANNISTER, MD appears in the CMS NPPES registry as a Family Medicine Physician provider holding MD credentials at 7400 LYNN AVE, HAMLIN, WV, 25523, with a listed phone of (304) 824-5806. NPI 1538129010 was issued on 03/27/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BANNISTER 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 3,948 prescription claims written by this provider, covering 198 Medicare beneficiaries and totaling roughly $452K in drug spend, split 10% brand-name and 90% generic by claim count, with an opioid prescribing rate of 7.0%. 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.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 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

7400 LYNN AVE
HAMLIN, WV 25523

Provider Details

NPI 1538129010
Specialty Family Medicine Physician
Credentials MD
Gender Female
NPI Issued 03/27/2006

Hospital and facility affiliations

Facilities where TAMMY BANNISTER, MD 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.

LINCOLN COUNTY PRIMARY CARE CENTER INC
LOGAN, WV
UNIVERSITY PHYSICIANS AND SURGEONS, INC
BARBOURSVILLE, WV

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

Brand vs generic prescribing mix · Typical

TAMMY BANNISTER, MD — brand share 10.0%
Specialty average (est.)

10% brand-name claims vs 90% generic, on 3,948 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.

3,948
Total Claims
$452K
Total Drug Cost
198
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
9,212
Total Day Supply
270,787
Brand vs Generic
10% brand / 90% generic
Brand Drug Cost
$388K
Generic Drug Cost
$64K
Opioid Claims
278 (7.0% rate)
Antibiotic Claims
126

Patient Demographics

Average Patient Age
72.1 years
Avg HCC Risk Score
1.07
Gender Split
74% female / 26% male
Age Distribution
<65: 24, 65-74: 96, 75-84: 63, 85+: 15

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Levothyroxine Sodium
207
Gabapentin
182
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
172
Amlodipine Besylate
170
Losartan Potassium
165
Atorvastatin Calcium
138
Omeprazole
130
Simvastatin
95
Hydrochlorothiazide
89
Alprazolam
87

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

Family Medicine Physician Overview

How TAMMY BANNISTER, MD fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

TAMMY BANNISTER, MD's 3,948 claims are above the specialty average of 3,418.

Nearby Family Medicine Physician Providers in West Virginia

Other clinicians with the same primary specialty enrolled in West Virginia, drawn from the same CMS NPPES roster as BANNISTER.

Compare Family Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is TAMMY BANNISTER, MD's specialty?
TAMMY BANNISTER, MD specializes in Family Medicine Physician and practices in HAMLIN, West Virginia. Credentials: MD.
How much does TAMMY BANNISTER, MD prescribe under Medicare Part D?
In 2023, TAMMY BANNISTER, MD wrote 3,948 Medicare Part D claims totaling $452K in drug costs for 198 beneficiaries.
Where is TAMMY BANNISTER, MD located?
TAMMY BANNISTER, MD is located at 7400 LYNN AVE, HAMLIN, WV, 25523. Phone: (304) 824-5806.
What is TAMMY BANNISTER, MD's NPI number?
TAMMY BANNISTER, MD's National Provider Identifier (NPI) is 1538129010, issued on 03/27/2006.
Does TAMMY BANNISTER, MD prescribe more brand-name or generic drugs?
TAMMY BANNISTER, MD's prescribing is 10% brand-name and 90% generic drugs by claim count, with $388K in brand drug costs.
Does TAMMY BANNISTER, MD prescribe opioids?
Yes, TAMMY BANNISTER, MD had 278 opioid claims in 2023 with an opioid prescribing rate of 7.0%.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does TAMMY BANNISTER, MD prescribe most often?
Based on 2023 Medicare Part D data, TAMMY BANNISTER, MD's most frequently prescribed drugs include Levothyroxine Sodium, Gabapentin, Hydrocodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does TAMMY BANNISTER, MD accept Medicare?
TAMMY BANNISTER, MD appears in CMS Medicare data with 3,948 Part D claims and 198 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify TAMMY BANNISTER, MD's credentials?
TAMMY BANNISTER, MD's NPI is 1538129010 with credentials MD. 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