2026 NPPES data Family Medicine Physician NPI 1851504195 M.D.
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LEAH ANDERSON, M.D.

Family Medicine Physician in BOZEMAN, Montana. 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
2K
Medicare Part D claims · 177 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: LEAH ANDERSON, M.D. is a Family Medicine Physician ([object Object]) practicing in BOZEMAN, Montana with a Medicare Part D prescribing footprint of 2K claims across 177 beneficiaries — 13% brand-name prescribing .

What stands out: LEAH ANDERSON, M.D. filed 1,982 Medicare Part D claims in 2023 across BOZEMAN, Montana. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

LEAH ANDERSON, 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).

LEAH ANDERSON, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 05/07/2007

NPI 1851504195

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

1,982 42% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Montana

How Family Medicine Physician compares to other specialties among Montana providers

Montana providers

Family Medicine Physician share within Montana

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

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).

LEAH ANDERSON, M.D. is a Family Medicine Physician provider practicing in BOZEMAN, Montana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1851504195. 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.

LEAH ANDERSON, M.D. appears in the CMS NPPES registry as a Family Medicine Physician provider holding M.D. credentials at 316 E BABCOCK ST, BOZEMAN, MT, 59715, with a listed phone of (406) 585-0022. NPI 1851504195 was issued on 05/07/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ANDERSON 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 1,982 prescription claims written by this provider, covering 177 Medicare beneficiaries and totaling roughly $153K in drug spend, split 13% brand-name and 87% generic by claim count, with an opioid prescribing rate of 2.0%. 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

316 E BABCOCK ST
BOZEMAN, MT 59715

Provider Details

NPI 1851504195
Specialty Family Medicine Physician
Credentials M.D.
Gender Female
NPI Issued 05/07/2007

Hospital and facility affiliations

Facilities where LEAH ANDERSON, 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.

BOZEMAN CREEK FAMILY HEALTH PLLC
BOZEMAN, MT

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

LEAH ANDERSON, M.D. — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 1,982 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.

1,982
Total Claims
$153K
Total Drug Cost
177
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,413
Total Day Supply
129,173
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$116K
Generic Drug Cost
$36K
Opioid Claims
40 (2.0% rate)
Antibiotic Claims
26

Patient Demographics

Average Patient Age
70.8 years
Avg HCC Risk Score
0.62
Gender Split
81% female / 19% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Levothyroxine Sodium
175
Losartan Potassium
120
Gabapentin
71
Atorvastatin Calcium
70
Bupropion Xl
Bupropion Hcl
67
Hydrochlorothiazide
53
Simvastatin
44
Lisinopril
41
Sertraline Hcl
41
Escitalopram Oxalate
39

* 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 LEAH ANDERSON, 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

LEAH ANDERSON, M.D.'s 1,982 claims are below the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Montana

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

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

Frequently Asked Questions

What is LEAH ANDERSON, M.D.'s specialty?
LEAH ANDERSON, M.D. specializes in Family Medicine Physician and practices in BOZEMAN, Montana. Credentials: M.D..
How much does LEAH ANDERSON, M.D. prescribe under Medicare Part D?
In 2023, LEAH ANDERSON, M.D. wrote 1,982 Medicare Part D claims totaling $153K in drug costs for 177 beneficiaries.
Where is LEAH ANDERSON, M.D. located?
LEAH ANDERSON, M.D. is located at 316 E BABCOCK ST, BOZEMAN, MT, 59715. Phone: (406) 585-0022.
What is LEAH ANDERSON, M.D.'s NPI number?
LEAH ANDERSON, M.D.'s National Provider Identifier (NPI) is 1851504195, issued on 05/07/2007.
Does LEAH ANDERSON, M.D. prescribe more brand-name or generic drugs?
LEAH ANDERSON, M.D.'s prescribing is 13% brand-name and 87% generic drugs by claim count, with $116K in brand drug costs.
Does LEAH ANDERSON, M.D. prescribe opioids?
Yes, LEAH ANDERSON, M.D. had 40 opioid claims in 2023 with an opioid prescribing rate of 2.0%.
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 LEAH ANDERSON, M.D. prescribe most often?
Based on 2023 Medicare Part D data, LEAH ANDERSON, M.D.'s most frequently prescribed drugs include Levothyroxine Sodium, Losartan Potassium, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does LEAH ANDERSON, M.D. accept Medicare?
LEAH ANDERSON, M.D. appears in CMS Medicare data with 1,982 Part D claims and 177 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LEAH ANDERSON, M.D.'s credentials?
LEAH ANDERSON, M.D.'s NPI is 1851504195 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