Dr. Peter Walsh, DO

  • Bozeman, MT
  • Gastroenterologist
NPI1255372736PAC ID9537050596
Medicare services, 2024
741
Medicare patients, 2024
552
Part D claims, 2024
324
Publications
3
MIPS score, 2024
87
Practice address
875 S Cottonwood Road Suite 100, Bozeman, MT 59718
Practice phone
Call (406) 219-2800
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Bozeman Outpatient Surgery Center

Surgery Center - Medicare-Certified · Bozeman, Montana

See all 9 affiliations

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Dr. Peter Walsh is a gastroenterologist in Bozeman, Montana

Dr. Walsh practices at Bozeman Outpatient Surgery Center in Bozeman, Montana.

Dr. Walsh's NPI, 1255372736, was assigned on June 8, 2006. Dr. Walsh graduated from Michigan State University College of Osteopathic Medicine in 1985. Dr. Walsh holds Montana license 59075.

NPI and contact details
Medicare PAC ID
9537050596
NPI enumeration date
June 8, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(406) 219-2800
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
67
Medical school graduation
1985

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Peter Walsh practices at Bozeman Outpatient Surgery Center in Bozeman, Montana

Dr. Walsh's primary practice is Bozeman Outpatient Surgery Center, at 875 S Cottonwood Road Suite 100, Bozeman, MT 59718. The practice phone is (406) 219-2800.

  • Bozeman Outpatient Surgery Center
    875 S Cottonwood Road Suite 100, Bozeman, MT 59718Phone(406) 219-2800

Source: Dmand AI Affiliation Data

Dr. Peter Walsh is affiliated with 7 sites of care and 2 medical groups

Dr. Walsh's primary practice is Bozeman Outpatient Surgery Center in Bozeman, Montana. Dr. Walsh is also affiliated with Bozeman Health Deaconess Regional Medical Center. The medical group on file is Bozeman Health. Dmand AI also links Dr. Walsh to 3 more hospitals, 2 group practices and clinics and 1 medical group, each named with a free account.

See all 9 affiliations for Dr. Walsh

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Peter Walsh's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Walsh practices, 7 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Bozeman Outpatient Surgery CenterAvailable with a free account
+6 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Peter Walsh is one of 40 gastroenterologists in Montana

Gastroenterology is Dr. Walsh's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Walsh is licensed in Montana.

Specialties and state licenses

  • Gastroenterology, MontanaPrimaryLicense 59075 · taxonomy 207RG0100X

Gastroenterologists near Dr. Walsh

Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.

40gastroenterologists in Montana
6gastroenterologists in Bozeman

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Peter Walsh billed Medicare for 741 services in 2024

CMS data shows 741 Medicare services from Dr. Walsh across 13 procedure codes in 2024, for 552 Medicare patients. Medicare paid $95,293 for them.

Medicare services, 2024741
Medicare patients552
Paid by Medicare$95,293
Procedure codes13

Dr. Walsh's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Surgery
2023: 6022024: 5568%
Office and hospital visits
2023: 1452024: 9534%
Other services
2023: 702024: 9029%

Where Dr. Walsh's Medicare services took place, 2024

  • In an office9513%
  • In a facility64687%

Dr. Walsh compared with the Montana median for gastroenterologists, 2024

  • Dr. Walsh
  • Montana median
Medicare services
741vs 48054% above
Medicare patients
552vs 44823% above
Part D claims
213vs 24413% below

Medians across 44 gastroenterologists in Montana with Dmand AI profiles that report each measure.

Dr. Walsh's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Walsh

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Peter Walsh treated 552 Medicare patients in 2024, average age 71

CMS counts 552 Medicare patients who saw Dr. Walsh in 2024. The largest group is 65 to 74, with 342 patients. 57% of them have high cholesterol, and 52% have high blood pressure. 7% are also on Medicaid. Their average risk score is 0.88, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Walsh's median patient age at 63, with 49% women.

Medicare patients, 2024552
Average age71
Average risk score0.88
Also on Medicaid7%

Dr. Walsh's Medicare patients by age, 2024

Dr. Walsh's Medicare patients by sex, 2024

  • Women28051%
  • Men27249%

Chronic conditions among Dr. Walsh's Medicare patients, 2024

  1. High cholesterol57%
  2. High blood pressure52%
  3. Arthritis40%
  4. Mood disorders20%
  5. Anxiety18%
  6. Depression17%
  7. Diabetes17%
  8. Ischemic heart disease16%

Share of Medicare patients with each condition. A patient can have several.

Dr. Walsh's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 63

Patient panel by sex, all payers

  • Women49%
  • Men50%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Peter Walsh wrote 324 Medicare Part D claims in 2024

In 2024, Dr. Walsh wrote 324 Medicare Part D claims for 103 patients. 88% of them were for generic drugs. CMS names the drug for 213 of them, across 6 drugs with 11 or more claims each, at $106,438 in total drug cost. In 2023, CMS named 172 claims across 7 drugs.

Part D claims, 2024324
Drugs named by CMS6
Total drug cost$106,438
Part D patients103

Dr. Walsh's Part D claims by kind of drug, 2024

  • Generic285 claims88%
  • Brand-name39 claims12%

Dr. Walsh's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Walsh's Part D claims, 2024

  • Antibiotics5%15 of 324 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 1722024: 21324%

Drugs named by CMS: 6 in 2024, 7 in 2023.

See all prescribing by Dr. Walsh

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Peter Walsh scored 87 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Dr. Walsh for performance year 2024, reported as part of a group. Dr. Walsh accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 188 procedures of colonoscopy by Dr. Walsh, more than 93% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Dr. Walsh's MIPS scores, performance year 2024

  • 87of 100Final score
  • 84.1of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 73of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Where Dr. Walsh ranks in Medicare procedure volume

Upper gastrointestinal (GI) endoscopy for acid reflux
90th percentile197 procedures
Colonoscopy
93rd percentile188 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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Dr. Peter Walsh has 3 publications on record

Dmand AI links 3 papers to Dr. Walsh, published from 2011 to 2017. The most frequent topics are Canada and Comorbidity.

Papers3
Years published2011 to 2017

Topics Dr. Walsh writes about most

  • Canada
  • Comorbidity

Recent publications by Dr. Walsh

See all 3 publications and co-authors

See who Dr. Walsh researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Walsh works with, so you can find a warm path to the right gastroenterologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Peter Walsh received $2,914 in industry payments from 2016 to 2025

CMS Open Payments shows 165 general payments to Dr. Walsh from 24 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $863.

General payments to Dr. Walsh by program year, 2016 to 2025

Companies that paid Dr. Walsh the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Walsh

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Peter Walsh graduated from Michigan State University College of Osteopathic Medicine

Dr. Walsh graduated from Michigan State University College of Osteopathic Medicine in 1985.

  1. Medical schoolMichigan State University College of Osteopathic Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Peter Walsh's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Peter Walsh

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Peter Walsh's NPI number?

Dr. Peter Walsh's NPI number is 1255372736. It was assigned on June 8, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Peter Walsh?

Dr. Peter Walsh is a gastroenterologist in Bozeman, Montana. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Peter Walsh practice?

Dr. Walsh practices at 875 S Cottonwood Road Suite 100, Bozeman, MT 59718. Dr. Walsh's primary practice is Bozeman Outpatient Surgery Center in Bozeman, Montana. Dmand AI also links Dr. Walsh to 3 hospitals, 2 group practices and clinics and 1 medical group.

What is Dr. Peter Walsh's office phone number?

The practice phone on file for Dr. Walsh is (406) 219-2800.

What is Dr. Peter Walsh's medical license number?

Dr. Walsh holds Montana license 59075.

Which hospitals is Dr. Peter Walsh affiliated with?

Dr. Walsh is affiliated with Bozeman Health Deaconess Regional Medical Center. Dmand AI links Dr. Walsh to 3 more hospitals.

What medical group is Dr. Peter Walsh part of?

Dr. Walsh is linked to Bozeman Health. Dmand AI links Dr. Walsh to 1 more medical group.

Does Dr. Peter Walsh accept Medicare?

Yes. CMS data shows Dr. Walsh billed Medicare for 741 services in 2024, and Dr. Walsh accepts Medicare assignment.

What is Dr. Peter Walsh's MIPS score?

Dr. Walsh's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.

How many Medicare patients does Dr. Peter Walsh see?

CMS counts 552 Medicare patients who saw Dr. Walsh in 2024, with an average age of 71.

Show 6 more questionsShow fewer questions

What services does Dr. Peter Walsh bill to Medicare?

In 2024, Dr. Walsh's most billed Medicare services were surgery: digestive system (45385), surgery: digestive system (43239) and surgery: digestive system (45380).

Where did Dr. Peter Walsh go to medical school?

Dr. Walsh graduated from Michigan State University College of Osteopathic Medicine in 1985.

What drugs does Dr. Peter Walsh prescribe most?

In 2024 Medicare Part D data, Dr. Walsh's most prescribed drugs by claims were Pantoprazole Sodium, Omeprazole and Azathioprine.

Has Dr. Peter Walsh received payments from drug or device companies?

CMS Open Payments shows $2,914 in general payments to Dr. Walsh from 24 companies from 2016 to 2025. The largest total came from Abbvie Inc.

How long has Dr. Peter Walsh been practicing?

Dr. Walsh graduated from medical school in 1985, 41 years ago.

Does Dr. Peter Walsh do research?

Dmand AI links 3 publications to Dr. Walsh, published from 2011 to 2017.

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