2026 NPPES data Family Medicine Physician NPI 1497715866 MD
Verify on CMS →

LOUIS ROSER, MD

Family Medicine Physician in BOISE, Idaho. 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
926
Medicare Part D claims · 74 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

LOUIS ROSER, MD filed 926 Medicare Part D claims in 2023 as a Family Medicine Physician in BOISE, Idaho, prescribing 89% generic.

926
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.

LOUIS ROSER, MD's Medicare Part D volume vs every U.S. prescriber

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

926 Top 25% higher than 75% 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%). This entry sits in this band. 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)

LOUIS ROSER, 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 LOUIS ROSER, MD?

Quality data not reported

NPI registry status

Active

Issued 03/28/2006

NPI 1497715866

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

926 73% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Idaho

How Family Medicine Physician compares to other specialties among Idaho providers

Idaho providers

Family Medicine Physician share within Idaho

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

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).

LOUIS ROSER, MD appears in the CMS NPPES registry as a Family Medicine Physician provider holding MD credentials at 1880 JUDITH LANE, BOISE, ID, 83705, with a listed phone of (208) 302-5200. NPI 1497715866 was issued on 03/28/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ROSER 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 926 prescription claims written by this provider, covering 74 Medicare beneficiaries and totaling roughly $93K in drug spend, split 11% brand-name and 89% generic by claim count, with an opioid prescribing rate of 2.8%. 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

1880 JUDITH LANE
BOISE, ID 83705

Provider Details

NPI 1497715866
Specialty Family Medicine Physician
Credentials MD
Gender Male
NPI Issued 03/28/2006

Hospital and facility affiliations

Facilities where LOUIS ROSER, 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.

SAINT ALPHONSUS REGIONAL MEDICAL CENTER INC
MERIDIAN, ID

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

LOUIS ROSER, MD — brand share 11.0%
Specialty average (est.)

11% brand-name claims vs 89% generic, on 926 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.

926
Total Claims
$93K
Total Drug Cost
74
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,650
Total Day Supply
47,223
Brand vs Generic
11% brand / 89% generic
Brand Drug Cost
$77K
Generic Drug Cost
$14K
Opioid Claims
26 (2.8% rate)
Antibiotic Claims
21

Patient Demographics

Average Patient Age
70.5 years
Avg HCC Risk Score
1.07
Gender Split
45% female / 55% male

Top Prescribed Drugs (Medicare Part D)

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

What LOUIS ROSER, 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
61
Omeprazole
37
Metformin Hcl
35
Losartan Potassium
34
Tamsulosin Hcl
32
Meloxicam
30
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
26
Lisinopril
23
Azelastine Hcl
21
Gabapentin
21

* 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 LOUIS ROSER, 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

LOUIS ROSER, MD's 926 claims are below the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Idaho

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

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

Frequently Asked Questions

What is LOUIS ROSER, MD's specialty?
LOUIS ROSER, MD specializes in Family Medicine Physician and practices in BOISE, Idaho. Credentials: MD.
How much does LOUIS ROSER, MD prescribe under Medicare Part D?
In 2023, LOUIS ROSER, MD wrote 926 Medicare Part D claims totaling $93K in drug costs for 74 beneficiaries.
Where is LOUIS ROSER, MD located?
LOUIS ROSER, MD is located at 1880 JUDITH LANE, BOISE, ID, 83705. Phone: (208) 302-5200.
What is LOUIS ROSER, MD's NPI number?
LOUIS ROSER, MD's National Provider Identifier (NPI) is 1497715866, issued on 03/28/2006.
Does LOUIS ROSER, MD prescribe more brand-name or generic drugs?
LOUIS ROSER, MD's prescribing is 11% brand-name and 89% generic drugs by claim count, with $77K in brand drug costs.
Does LOUIS ROSER, MD prescribe opioids?
Yes, LOUIS ROSER, MD had 26 opioid claims in 2023 with an opioid prescribing rate of 2.8%.
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 LOUIS ROSER, MD prescribe most often?
Based on 2023 Medicare Part D data, LOUIS ROSER, MD's most frequently prescribed drugs include Atorvastatin Calcium, Omeprazole, Metformin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does LOUIS ROSER, MD accept Medicare?
LOUIS ROSER, MD appears in CMS Medicare data with 926 Part D claims and 74 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LOUIS ROSER, MD's credentials?
LOUIS ROSER, MD's NPI is 1497715866 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