2026 NPPES data Surgery Physician NPI 1992808398 M.D.
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JONATHAN GROSDIDIER, M.D.

Surgery Physician in DOUGLAS, Wyoming. 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
30
Medicare Part D claims · 21 beneficiaries · Surgery Physician avg: 169
MIPS score
71.6759/100
▼ 11 pts below national avg 83.1 · [object Object]
What the federal data reveals: JONATHAN GROSDIDIER, M.D. is a Surgery Physician ([object Object]) practicing in DOUGLAS, Wyoming with a Medicare Part D prescribing footprint of 30 claims across 21 beneficiaries . Their CMS MIPS Final Score of 71.6759/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: JONATHAN GROSDIDIER, M.D. reported a CMS MIPS final score of 71.6759 out of 100, below the 83.1 national average, and filed 30 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

JONATHAN GROSDIDIER, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

JONATHAN GROSDIDIER, M.D. at a glance

Below national average

NPI registry status

Active

Issued 09/07/2006

NPI 1992808398

Primary specialty

Surgery Physician

Mid-sized

36,191 US NPIs in this specialty

Medicare Part D claims

30 82% vs specialty avg

2023 prescription claims

Specialty avg: 169

MIPS final score

71.6759/100 11.424099999999996% pts

Mid-tier band

vs 83.1 national avg

Specialty distribution in Wyoming

How Surgery Physician compares to other specialties among Wyoming providers

Wyoming providers

Surgery Physician share within Wyoming

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

Medicare quality performance — MIPS

JONATHAN GROSDIDIER, M.D.'s 2023 MIPS final score plotted against the Surgery Physician national average

Below national average
MIPS Final Score
71.6759/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Surgery Physician) — 71.6759/100 vs national avg 83.1

0%100%National avg83%71.7%
MIPS final score (Surgery Physician) — 71.6759/100 vs national avg 83.1

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).

JONATHAN GROSDIDIER, M.D. is a Surgery Physician provider practicing in DOUGLAS, Wyoming, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1992808398. 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.

JONATHAN GROSDIDIER, M.D. appears in the CMS NPPES registry as a Surgery Physician provider holding M.D. credentials at 111 S 5TH ST, DOUGLAS, WY, 82633, with a listed phone of (307) 358-2122. NPI 1992808398 was issued on 09/07/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GROSDIDIER 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 30 prescription claims written by this provider, covering 21 Medicare beneficiaries and totaling roughly $452 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 71.6759/100 for the 2023 performance year (Quality 64.2139, Cost 58.8724), compared with the national average of 83.1.

Surgery Physician is a mid-sized specialty nationwide, with 36,191 enrolled providers across 56 states and an average of 169 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

111 S 5TH ST
DOUGLAS, WY 82633

Provider Details

NPI 1992808398
Specialty Surgery Physician
Credentials M.D.
Gender Male
NPI Issued 09/07/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

71.6759
Final Score
Avg: 83.1
64.2139
Quality
58.8724
Cost
79
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where JONATHAN GROSDIDIER, 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.

MEMORIAL HOSPITAL OF CONVERSE COUNTY
★★★★☆ 4/5
DOUGLAS, WY
Critical Access Hospitals
CMS CCN: 531302

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.

30
Total Claims
$452
Total Drug Cost
21
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
37
Total Day Supply
687
Generic Drug Cost
$436

Patient Demographics

Average Patient Age
69.6 years
Avg HCC Risk Score
0.85

Surgery Physician Overview

How JONATHAN GROSDIDIER, M.D. fits within the Surgery Physician landscape nationally.

36,191
Surgery Physician Providers in US
56
States with Surgery Physician
169
Avg Claims per Provider

JONATHAN GROSDIDIER, M.D.'s 30 claims are below the specialty average of 169.

Nearby Surgery Physician Providers in Wyoming

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

Compare Surgery Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JONATHAN GROSDIDIER, M.D.'s specialty?
JONATHAN GROSDIDIER, M.D. specializes in Surgery Physician and practices in DOUGLAS, Wyoming. Credentials: M.D..
How much does JONATHAN GROSDIDIER, M.D. prescribe under Medicare Part D?
In 2023, JONATHAN GROSDIDIER, M.D. wrote 30 Medicare Part D claims totaling $452 in drug costs for 21 beneficiaries.
What is JONATHAN GROSDIDIER, M.D.'s Medicare quality score?
JONATHAN GROSDIDIER, M.D. has a CMS MIPS Final Score of 71.6759/100 (Quality: 64.2139, Cost: 58.8724). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is JONATHAN GROSDIDIER, M.D. located?
JONATHAN GROSDIDIER, M.D. is located at 111 S 5TH ST, DOUGLAS, WY, 82633. Phone: (307) 358-2122.
What is JONATHAN GROSDIDIER, M.D.'s NPI number?
JONATHAN GROSDIDIER, M.D.'s National Provider Identifier (NPI) is 1992808398, issued on 09/07/2006.
How many Surgery Physician providers are there in the US?
There are 36,191 Surgery Physician providers across 56 states in the US. The average Surgery Physician provider writes 169 Medicare Part D claims per year.
Does JONATHAN GROSDIDIER, M.D. accept Medicare?
JONATHAN GROSDIDIER, M.D. appears in CMS Medicare data with 30 Part D claims and 21 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JONATHAN GROSDIDIER, M.D.'s credentials?
JONATHAN GROSDIDIER, M.D.'s NPI is 1992808398 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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