2026 NPPES data Family Medicine Physician NPI 1518127224 MD
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PETER WILHELM, MD

Family Medicine Physician in MIDDLEBURY, Vermont. 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
5K
Medicare Part D claims · 413 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 shows

PETER WILHELM, MD filed 4,659 Medicare Part D claims in 2023 as a Family Medicine Physician in MIDDLEBURY, Vermont, prescribing 90% generic.

5K
Part D claims, 2023
90%
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.

PETER WILHELM, MD's Medicare Part D volume vs every U.S. prescriber

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

4,659 Top 7% higher than 93% 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)

PETER WILHELM, 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 PETER WILHELM, MD?

Quality data not reported

NPI registry status

Active

Issued 06/16/2008

NPI 1518127224

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

4,659 36% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Vermont

How Family Medicine Physician compares to other specialties among Vermont providers

Vermont providers

Family Medicine Physician share within Vermont

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

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).

PETER WILHELM, MD appears in the CMS NPPES registry as a Family Medicine Physician provider holding MD credentials at 1330 EXCHANGE ST STE 201, MIDDLEBURY, VT, 05753, with a listed phone of (802) 388-1500. NPI 1518127224 was issued on 06/16/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WILHELM 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 4,659 prescription claims written by this provider, covering 413 Medicare beneficiaries and totaling roughly $401K in drug spend, split 10% brand-name and 90% generic by claim count, with an opioid prescribing rate of 2.6%. 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.

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

1330 EXCHANGE ST STE 201
MIDDLEBURY, VT 05753

Provider Details

NPI 1518127224
Specialty Family Medicine Physician
Credentials MD
Gender Male
NPI Issued 06/16/2008

Hospital and facility affiliations

Facilities where PETER WILHELM, 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.

MIDDLEBURY FAMILY HEALTH
MIDDLEBURY, VT

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

PETER WILHELM, MD — brand share 10.0%
Specialty average (est.)

10% brand-name claims vs 90% generic, on 4,659 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.

4,659
Total Claims
$401K
Total Drug Cost
413
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
10,082
Total Day Supply
292,380
Brand vs Generic
10% brand / 90% generic
Brand Drug Cost
$251K
Generic Drug Cost
$149K
Opioid Claims
119 (2.6% rate)
Antibiotic Claims
144

Patient Demographics

Average Patient Age
75.3 years
Avg HCC Risk Score
0.96
Gender Split
45% female / 55% male
Age Distribution
<65: 27, 65-74: 161, 75-84: 160, 85+: 65

Top Prescribed Drugs (Medicare Part D)

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

What PETER WILHELM, 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
Lisinopril
205
Atorvastatin Calcium
201
Losartan Potassium
158
Omeprazole
156
Amlodipine Besylate
146
Levothyroxine Sodium
137
Rosuvastatin Calcium
136
Tamsulosin Hcl
134
Hydrochlorothiazide
127
Gabapentin
99

* 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 PETER WILHELM, 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

PETER WILHELM, MD's 4,659 claims are above the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Vermont

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

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

Frequently Asked Questions

What is PETER WILHELM, MD's specialty?
PETER WILHELM, MD specializes in Family Medicine Physician and practices in MIDDLEBURY, Vermont. Credentials: MD.
How much does PETER WILHELM, MD prescribe under Medicare Part D?
In 2023, PETER WILHELM, MD wrote 4,659 Medicare Part D claims totaling $401K in drug costs for 413 beneficiaries.
Where is PETER WILHELM, MD located?
PETER WILHELM, MD is located at 1330 EXCHANGE ST STE 201, MIDDLEBURY, VT, 05753. Phone: (802) 388-1500.
What is PETER WILHELM, MD's NPI number?
PETER WILHELM, MD's National Provider Identifier (NPI) is 1518127224, issued on 06/16/2008.
Does PETER WILHELM, MD prescribe more brand-name or generic drugs?
PETER WILHELM, MD's prescribing is 10% brand-name and 90% generic drugs by claim count, with $251K in brand drug costs.
Does PETER WILHELM, MD prescribe opioids?
Yes, PETER WILHELM, MD had 119 opioid claims in 2023 with an opioid prescribing rate of 2.6%.
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 PETER WILHELM, MD prescribe most often?
Based on 2023 Medicare Part D data, PETER WILHELM, MD's most frequently prescribed drugs include Lisinopril, Atorvastatin Calcium, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does PETER WILHELM, MD accept Medicare?
PETER WILHELM, MD appears in CMS Medicare data with 4,659 Part D claims and 413 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify PETER WILHELM, MD's credentials?
PETER WILHELM, MD's NPI is 1518127224 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