2026 NPPES data Geriatric Medicine (Family Medicine) Physician NPI 1831190230 MD
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THOMAS SCHAEFER, MD

Geriatric Medicine (Family Medicine) Physician in SOMERSET, Pennsylvania. 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 · 331 beneficiaries · Geriatric Medicine (Family Medicine) Physician avg: 5K
Generic prescribing
84%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

THOMAS SCHAEFER, MD filed 3,535 Medicare Part D claims in 2023 as a Geriatric Medicine (Family Medicine) Physician in SOMERSET, Pennsylvania, prescribing 84% generic.

4K
Part D claims, 2023
84%
generic prescribing
Likely
board-certified (heuristic)

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.

THOMAS SCHAEFER, MD's Medicare Part D volume vs every U.S. prescriber

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

3,535 Top 10% higher than 90% 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%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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 certification likely (heuristic — not verified)

THOMAS SCHAEFER, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about THOMAS SCHAEFER, MD?

Quality data not reported

NPI registry status

Active

Issued 08/09/2005

NPI 1831190230

Primary specialty

Geriatric Medicine (Family Medicine) Physician

Niche

1,779 US NPIs in this specialty

Medicare Part D claims

3,535 27% vs specialty avg

2023 prescription claims

Specialty avg: 4,854

Specialty distribution in Pennsylvania

How Geriatric Medicine (Family Medicine) Physician compares to other specialties among Pennsylvania providers

Pennsylvania providers

Geriatric Medicine (Family Medicine) Physician share within Pennsylvania

1. Geriatric Medicine (Family Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Geriatric Medicine (Family Medicine) Physician share within Pennsylvania

Specialty board-certification context

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

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

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

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

THOMAS SCHAEFER, MD appears in the CMS NPPES registry as a Geriatric Medicine (Family Medicine) Physician provider holding MD credentials at 329 S PLEASANT AVE, SOMERSET, PA, 15501, with a listed phone of (814) 445-3575. NPI 1831190230 was issued on 08/09/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SCHAEFER 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 3,535 prescription claims written by this provider, covering 331 Medicare beneficiaries and totaling roughly $531K in drug spend, split 16% brand-name and 84% generic by claim count, with an opioid prescribing rate of 1.6%. 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.

Geriatric Medicine (Family Medicine) Physician is a narrow specialty nationwide, with 1,779 enrolled providers across 52 states and an average of 4,854 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

329 S PLEASANT AVE
SOMERSET, PA 15501

Provider Details

NPI 1831190230
Specialty Geriatric Medicine (Family Medicine) Physician
Credentials MD
Gender Male
NPI Issued 08/09/2005

Hospital and facility affiliations

Facilities where THOMAS SCHAEFER, 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.

CENTERWELL SENIOR PRIMARY CARE SC JV PC
MYRTLE BEACH, SC

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

License & disciplinary context — Pennsylvania PA-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 ~45K Pennsylvania medical licensees in 2023 — they are NOT specific to THOMAS SCHAEFER, MD. To verify THOMAS SCHAEFER, MD's current license status, search the PA-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

133
Total board actions, Pennsylvania 2023
Across 129 cases
2.96
Actions per 1,000 licensees
Pennsylvania statewide rate
probation
Most common action type
48 cases

PA-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 Pennsylvania disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

THOMAS SCHAEFER, MD — brand share 16.0%
Specialty average (est.)

16% brand-name claims vs 84% generic, on 3,535 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.

3,535
Total Claims
$531K
Total Drug Cost
331
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,576
Total Day Supply
96,957
Brand vs Generic
16% brand / 84% generic
Brand Drug Cost
$285K
Generic Drug Cost
$244K
Opioid Claims
56 (1.6% rate)
Antibiotic Claims
39

Patient Demographics

Average Patient Age
74.0 years
Avg HCC Risk Score
2.80
Gender Split
63% female / 37% male
Age Distribution
<65: 46, 65-74: 144, 75-84: 98, 85+: 43

Top Prescribed Drugs (Medicare Part D)

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

What THOMAS SCHAEFER, MD 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
252
Furosemide
150
Gabapentin
127
Pantoprazole Sodium
115
Amlodipine Besylate
108
Lisinopril
97
Metoprolol Succinate
91
Levothyroxine Sodium
82
Tamsulosin Hcl
66
Sertraline Hcl
62

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

Geriatric Medicine (Family Medicine) Physician Overview

How THOMAS SCHAEFER, MD fits within the Geriatric Medicine (Family Medicine) Physician landscape nationally.

1,779
Geriatric Medicine (Family Medicine) Physician Providers in US
52
States with Geriatric Medicine (Family Medicine) Physician
4,854
Avg Claims per Provider

THOMAS SCHAEFER, MD's 3,535 claims are below the specialty average of 4,854.

Nearby Geriatric Medicine (Family Medicine) Physician Providers in Pennsylvania

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

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

Frequently Asked Questions

What is THOMAS SCHAEFER, MD's specialty?
THOMAS SCHAEFER, MD specializes in Geriatric Medicine (Family Medicine) Physician and practices in SOMERSET, Pennsylvania. Credentials: MD.
How much does THOMAS SCHAEFER, MD prescribe under Medicare Part D?
In 2023, THOMAS SCHAEFER, MD wrote 3,535 Medicare Part D claims totaling $531K in drug costs for 331 beneficiaries.
Where is THOMAS SCHAEFER, MD located?
THOMAS SCHAEFER, MD is located at 329 S PLEASANT AVE, SOMERSET, PA, 15501. Phone: (814) 445-3575.
What is THOMAS SCHAEFER, MD's NPI number?
THOMAS SCHAEFER, MD's National Provider Identifier (NPI) is 1831190230, issued on 08/09/2005.
Does THOMAS SCHAEFER, MD prescribe more brand-name or generic drugs?
THOMAS SCHAEFER, MD's prescribing is 16% brand-name and 84% generic drugs by claim count, with $285K in brand drug costs.
Does THOMAS SCHAEFER, MD prescribe opioids?
Yes, THOMAS SCHAEFER, MD had 56 opioid claims in 2023 with an opioid prescribing rate of 1.6%.
How many Geriatric Medicine (Family Medicine) Physician providers are there in the US?
There are 1,779 Geriatric Medicine (Family Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Family Medicine) Physician provider writes 4,854 Medicare Part D claims per year.
What drugs does THOMAS SCHAEFER, MD prescribe most often?
Based on 2023 Medicare Part D data, THOMAS SCHAEFER, MD's most frequently prescribed drugs include Atorvastatin Calcium, Furosemide, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does THOMAS SCHAEFER, MD accept Medicare?
THOMAS SCHAEFER, MD appears in CMS Medicare data with 3,535 Part D claims and 331 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify THOMAS SCHAEFER, MD's credentials?
THOMAS SCHAEFER, MD's NPI is 1831190230 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