2026 NPPES data Clinical Pathology/Laboratory Medicine Physician NPI 1720168537 MD
Verify on CMS →

AMY LARSEN, MD

Clinical Pathology/Laboratory Medicine Physician in SAINT PAUL, Minnesota. 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
321
Medicare Part D claims · 99 beneficiaries · Clinical Pathology/Laboratory Medicine Physician avg: 149

What the federal data shows

AMY LARSEN, MD filed 321 Medicare Part D claims in 2023 as a Clinical Pathology/Laboratory Medicine Physician in SAINT PAUL, Minnesota.

321
Part D claims, 2023
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.

AMY LARSEN, MD's Medicare Part D volume vs every U.S. prescriber

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

321 Top 43% higher than 57% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. 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)

AMY LARSEN, 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 AMY LARSEN, MD?

Quality data not reported

NPI registry status

Active

Issued 10/16/2006

NPI 1720168537

Primary specialty

Clinical Pathology/Laboratory Medicine Physician

Niche

1,229 US NPIs in this specialty

Medicare Part D claims

321 115% vs specialty avg

2023 prescription claims

Specialty avg: 149

Specialty distribution in Minnesota

How Clinical Pathology/Laboratory Medicine Physician compares to other specialties among Minnesota providers

Minnesota providers

Clinical Pathology/Laboratory Medicine Physician share within Minnesota

1. Clinical Pathology/Laboratory Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Clinical Pathology/Laboratory Medicine Physician share within Minnesota

Specialty board-certification context

Estimated specialty board-certified rate — Clinical Pathology/Laboratory Medicine Physician (ABMS / AOA reference)

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

Est. board-certified rate (Clinical Pathology/Laboratory Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Clinical Pathology/Laboratory 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).

AMY LARSEN, MD is a Clinical Pathology/Laboratory Medicine Physician provider practicing in SAINT PAUL, Minnesota, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1720168537. 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.

AMY LARSEN, MD appears in the CMS NPPES registry as a Clinical Pathology/Laboratory Medicine Physician provider holding MD credentials at 640 JACKSON ST, SAINT PAUL, MN, 55101, with a listed phone of (651) 254-3456. NPI 1720168537 was issued on 10/16/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LARSEN 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 321 prescription claims written by this provider, covering 99 Medicare beneficiaries and totaling roughly $27K in drug spend. 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.

Clinical Pathology/Laboratory Medicine Physician is a narrow specialty nationwide, with 1,229 enrolled providers across 51 states and an average of 149 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

640 JACKSON ST
SAINT PAUL, MN 55101

Provider Details

NPI 1720168537
Specialty Clinical Pathology/Laboratory Medicine Physician
Credentials MD
Gender Female
NPI Issued 10/16/2006

Hospital and facility affiliations

Facilities where AMY LARSEN, 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.

GROUP HEALTH PLAN INC
ROSEVILLE, MN

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

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

321
Total Claims
$27K
Total Drug Cost
99
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
498
Total Day Supply
12,904
Generic Drug Cost
$6K
Antibiotic Claims
33

Patient Demographics

Average Patient Age
73.1 years
Avg HCC Risk Score
2.82
Gender Split
45% female / 55% male
Age Distribution
<65: 16, 65-74: 36, 75-84: 29, 85+: 18

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Losartan Potassium
20
Eliquis
Apixaban
15
Potassium Chloride
15
Atorvastatin Calcium
14
Clopidogrel
Clopidogrel Bisulfate
11
Metoprolol Succinate
11

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

Clinical Pathology/Laboratory Medicine Physician Overview

How AMY LARSEN, MD fits within the Clinical Pathology/Laboratory Medicine Physician landscape nationally.

1,229
Clinical Pathology/Laboratory Medicine Physician Providers in US
51
States with Clinical Pathology/Laboratory Medicine Physician
149
Avg Claims per Provider

AMY LARSEN, MD's 321 claims are above the specialty average of 149.

Nearby Clinical Pathology/Laboratory Medicine Physician Providers in Minnesota

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

Compare Clinical Pathology/Laboratory Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is AMY LARSEN, MD's specialty?
AMY LARSEN, MD specializes in Clinical Pathology/Laboratory Medicine Physician and practices in SAINT PAUL, Minnesota. Credentials: MD.
How much does AMY LARSEN, MD prescribe under Medicare Part D?
In 2023, AMY LARSEN, MD wrote 321 Medicare Part D claims totaling $27K in drug costs for 99 beneficiaries.
Where is AMY LARSEN, MD located?
AMY LARSEN, MD is located at 640 JACKSON ST, SAINT PAUL, MN, 55101. Phone: (651) 254-3456.
What is AMY LARSEN, MD's NPI number?
AMY LARSEN, MD's National Provider Identifier (NPI) is 1720168537, issued on 10/16/2006.
How many Clinical Pathology/Laboratory Medicine Physician providers are there in the US?
There are 1,229 Clinical Pathology/Laboratory Medicine Physician providers across 51 states in the US. The average Clinical Pathology/Laboratory Medicine Physician provider writes 149 Medicare Part D claims per year.
What drugs does AMY LARSEN, MD prescribe most often?
Based on 2023 Medicare Part D data, AMY LARSEN, MD's most frequently prescribed drugs include Losartan Potassium, Eliquis, Potassium Chloride. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does AMY LARSEN, MD accept Medicare?
AMY LARSEN, MD appears in CMS Medicare data with 321 Part D claims and 99 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify AMY LARSEN, MD's credentials?
AMY LARSEN, MD's NPI is 1720168537 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