2026 NPPES data Family Medicine Physician NPI 1144459983 MD
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Lowell Stoltzfus, MD

Family Medicine Physician in Belleville, Pennsylvania. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers — including 147,640 in Family Medicine Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration — see our methodology.

Federal data — no proprietary rating. We show these CMS records as-is — no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
13K
Medicare Part D claims · 1K beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
89%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Lowell Stoltzfus, MD filed 12,684 Medicare Part D claims in 2023 as a Family Medicine Physician in Belleville, Pennsylvania, prescribing 89% generic.

13K
Part D claims, 2023
89%
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.

Lowell Stoltzfus, MD's Medicare Part D volume vs every U.S. prescriber

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

12,684 Top 2% higher than 98% 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)

Lowell Stoltzfus, 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).

What does the federal data show about Lowell Stoltzfus, MD?

Quality data not reported

NPI registry status

Active

Issued 07/14/2009

NPI 1144459983

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

12,684 271% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Pennsylvania

How Family Medicine Physician compares to other specialties among Pennsylvania providers

Pennsylvania providers

Largest specialties in Pennsylvania (% of in-state providers)

Student in an Organized Health Care Education/Training Program — 5.6%Student in an Organized Health Care Education/Training Program5.6%Pharmacist — 5%Pharmacist5%Physical Therapist — 4.9%Physical Therapist4.9%Mental Health Counselor — 3.9%Mental Health Counselor3.9%Internal Medicine Physician — 3.3%Internal Medicine Physician3.3%Professional Counselor — 3.2%Professional Counselor3.2%Family Medicine Physician — 2.8%Family Medicine Physician2.8%
Largest specialties in Pennsylvania (% of in-state providers)

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).

Lowell Stoltzfus, MD appears in the CMS NPPES registry as a Family Medicine Physician provider holding MD credentials at 4752 STATE ROUTE 655, Belleville, PA, 17004, with a listed phone of (717) 667-9030. NPI 1144459983 was issued on 07/14/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Stoltzfus 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 12,684 prescription claims written by this provider, covering 1,016 Medicare beneficiaries and totaling roughly $1.1 million in drug spend, split 10% brand-name and 89% generic by claim count, with an opioid prescribing rate of 1.1%. 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

4752 STATE ROUTE 655
Belleville, PA 17004

Provider Details

NPI 1144459983
Specialty Family Medicine Physician
Credentials MD
Gender Male
NPI Issued 07/14/2009

Hospital and facility affiliations

Facilities where Lowell Stoltzfus, 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.

Geisinger Clinic
Reedsville, PA
Phoenix Rehabilitation And Health Services Inc
Cranberry Township, PA

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 Lowell Stoltzfus, MD. To verify Lowell Stoltzfus, 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

Lowell Stoltzfus, MD — brand share 10.0%
Family Medicine Physician average

10% brand-name claims vs 89% generic, on 12,684 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.

12,684
Total Claims
$1.1M
Total Drug Cost
1,016
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
27,405
Total Day Supply
795,331
Brand vs Generic
10% brand / 89% generic
Brand Drug Cost
$879K
Generic Drug Cost
$231K
Opioid Claims
142 (1.1% rate)
Antibiotic Claims
359

Patient Demographics

Average Patient Age
73.6 years
Avg HCC Risk Score
1.20
Gender Split
55% female / 45% male
Age Distribution
<65: 107, 65-74: 450, 75-84: 302, 85+: 157

Top Prescribed Drugs (Medicare Part D)

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

What Lowell Stoltzfus, 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
785
Levothyroxine Sodium
469
Omeprazole
450
Lisinopril
385
Gabapentin
374
Metoprolol Succinate
371
Losartan Potassium
324
Amlodipine Besylate
306
Rosuvastatin Calcium
276
Prednisone
258

* 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 Lowell Stoltzfus, 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

Lowell Stoltzfus, MD's 12,684 claims are above the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Pennsylvania

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

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

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry — providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Pennsylvania medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Family Medicine Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only — they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Lowell Stoltzfus, MD's specialty?
Lowell Stoltzfus, MD specializes in Family Medicine Physician and practices in Belleville, Pennsylvania. Credentials: MD.
How much does Lowell Stoltzfus, MD prescribe under Medicare Part D?
In 2023, Lowell Stoltzfus, MD wrote 12,684 Medicare Part D claims totaling $1.1M in drug costs for 1,016 beneficiaries.
Where is Lowell Stoltzfus, MD located?
Lowell Stoltzfus, MD is located at 4752 STATE ROUTE 655, Belleville, PA, 17004. Phone: (717) 667-9030.
What is Lowell Stoltzfus, MD's NPI number?
Lowell Stoltzfus, MD's National Provider Identifier (NPI) is 1144459983, issued on 07/14/2009.
Does Lowell Stoltzfus, MD prescribe more brand-name or generic drugs?
Lowell Stoltzfus, MD's prescribing is 10% brand-name and 89% generic drugs by claim count, with $879K in brand drug costs.
Does Lowell Stoltzfus, MD prescribe opioids?
Yes, Lowell Stoltzfus, MD had 142 opioid claims in 2023 with an opioid prescribing rate of 1.1%.
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 Lowell Stoltzfus, MD prescribe most often?
Based on 2023 Medicare Part D data, Lowell Stoltzfus, MD's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Omeprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Lowell Stoltzfus, MD accept Medicare?
Lowell Stoltzfus, MD appears in CMS Medicare data with 12,684 Part D claims and 1,016 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Lowell Stoltzfus, MD's credentials?
Lowell Stoltzfus, MD's NPI is 1144459983 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

Compiled from official public sources by the PlainDoctor editorial team.