2026 NPPES data Family Medicine Physician NPI 1073597134 M.D.
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THOMAS ANDERSEN, M.D.

Family Medicine Physician in LITITZ, 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
7K
Medicare Part D claims · 676 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

THOMAS ANDERSEN, M.D. filed 6,905 Medicare Part D claims in 2023 as a Family Medicine Physician in LITITZ, Pennsylvania, prescribing 93% generic.

7K
Part D claims, 2023
93%
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 ANDERSEN, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

6,905 Top 4% higher than 96% 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 ANDERSEN, M.D. 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 ANDERSEN, M.D.?

Quality data not reported

NPI registry status

Active

Issued 12/02/2005

NPI 1073597134

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

6,905 102% 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

Family Medicine Physician share within Pennsylvania

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

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).

THOMAS ANDERSEN, M.D. appears in the CMS NPPES registry as a Family Medicine Physician provider holding M.D. credentials at 562 W 2ND AVE, LITITZ, PA, 17543, with a listed phone of (717) 626-2167. NPI 1073597134 was issued on 12/02/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ANDERSEN 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 6,905 prescription claims written by this provider, covering 676 Medicare beneficiaries and totaling roughly $551K in drug spend, split 7% brand-name and 93% generic by claim count, with an opioid prescribing rate of 3.0%. 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

562 W 2ND AVE
LITITZ, PA 17543

Provider Details

NPI 1073597134
Specialty Family Medicine Physician
Credentials M.D.
Gender Male
NPI Issued 12/02/2005

Hospital and facility affiliations

Facilities where THOMAS ANDERSEN, M.D. 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.

LANCASTER GENERAL MEDICAL GROUP
LANCASTER, 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 THOMAS ANDERSEN, M.D.. To verify THOMAS ANDERSEN, M.D.'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 · Generic-heavy

THOMAS ANDERSEN, M.D. — brand share 7.0%
Specialty average (est.)

7% brand-name claims vs 93% generic, on 6,905 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.

6,905
Total Claims
$551K
Total Drug Cost
676
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
15,393
Total Day Supply
450,933
Brand vs Generic
7% brand / 93% generic
Brand Drug Cost
$387K
Generic Drug Cost
$161K
Opioid Claims
206 (3.0% rate)
Antibiotic Claims
88

Patient Demographics

Average Patient Age
75.2 years
Avg HCC Risk Score
1.16
Gender Split
53% female / 47% male
Age Distribution
<65: 36, 65-74: 290, 75-84: 260, 85+: 90

Top Prescribed Drugs (Medicare Part D)

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

What THOMAS ANDERSEN, M.D. 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
493
Losartan Potassium
332
Omeprazole
298
Amlodipine Besylate
292
Levothyroxine Sodium
255
Rosuvastatin Calcium
226
Simvastatin
216
Lisinopril
208
Hydrochlorothiazide
129
Metoprolol Succinate
126

* 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 THOMAS ANDERSEN, M.D. 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

THOMAS ANDERSEN, M.D.'s 6,905 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 ANDERSEN.

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

Frequently Asked Questions

What is THOMAS ANDERSEN, M.D.'s specialty?
THOMAS ANDERSEN, M.D. specializes in Family Medicine Physician and practices in LITITZ, Pennsylvania. Credentials: M.D..
How much does THOMAS ANDERSEN, M.D. prescribe under Medicare Part D?
In 2023, THOMAS ANDERSEN, M.D. wrote 6,905 Medicare Part D claims totaling $551K in drug costs for 676 beneficiaries.
Where is THOMAS ANDERSEN, M.D. located?
THOMAS ANDERSEN, M.D. is located at 562 W 2ND AVE, LITITZ, PA, 17543. Phone: (717) 626-2167.
What is THOMAS ANDERSEN, M.D.'s NPI number?
THOMAS ANDERSEN, M.D.'s National Provider Identifier (NPI) is 1073597134, issued on 12/02/2005.
Does THOMAS ANDERSEN, M.D. prescribe more brand-name or generic drugs?
THOMAS ANDERSEN, M.D.'s prescribing is 7% brand-name and 93% generic drugs by claim count, with $387K in brand drug costs.
Does THOMAS ANDERSEN, M.D. prescribe opioids?
Yes, THOMAS ANDERSEN, M.D. had 206 opioid claims in 2023 with an opioid prescribing rate of 3.0%.
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 THOMAS ANDERSEN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, THOMAS ANDERSEN, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Losartan Potassium, Omeprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does THOMAS ANDERSEN, M.D. accept Medicare?
THOMAS ANDERSEN, M.D. appears in CMS Medicare data with 6,905 Part D claims and 676 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify THOMAS ANDERSEN, M.D.'s credentials?
THOMAS ANDERSEN, M.D.'s NPI is 1073597134 with credentials M.D.. 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