Robert W. Thayer, PA-C
- Medicare patients, 2024
- 343
- Part D claims, 2024
- 933
- Hospital affiliations
- 4
- Industry payments
- $50
- Medical group
- 1
- Practice address
- 1233 N 30th St, Billings, MT 59101
- Practice phone
- Call (406) 237-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
St Vincent Healthcare
Billings, Montana
Find Robert Thayer's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Robert W. Thayer is a physician assistant in Billings, Montana
Robert Thayer practices at St Vincent Healthcare in Billings, Montana.
Robert Thayer's NPI, 1033877782, was assigned on November 30, 2021. Robert Thayer holds Montana license 102234.
- NPI
- 1033877782NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5294121703
- NPI enumeration date
- November 30, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (406) 237-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Robert W. Thayer practices at St Vincent Healthcare in Billings, Montana
Robert Thayer's primary practice is St Vincent Healthcare, at 1233 N 30th St, Billings, MT 59101 in Yellowstone County. The practice phone is (406) 237-7000.
- St Vincent Healthcare1233 N 30th St, Billings, MT 59101 · Yellowstone CountyPhone(406) 237-7000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Robert W. Thayer is affiliated with 6 sites of care and 1 medical group
Robert Thayer's primary practice is St Vincent Healthcare in Billings, Montana. Robert Thayer is also affiliated with Billings Clinic Hospital. The medical group on file is Ortho Montana Orthopedics & Sports Medicine, P.C. Dmand AI also links Robert Thayer to 3 more hospitals and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Robert W. Thayer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Robert Thayer practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| St Vincent Healthcare | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Robert W. Thayer is one of 656 physician assistants in Montana
Physician assistant is Robert Thayer's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Robert Thayer is licensed in Montana.
Specialties and state licenses
- Physician assistant, MontanaPrimary
Physician assistants near Robert Thayer
Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Robert W. Thayer treated 343 Medicare patients in 2024, average age 73
CMS counts 343 Medicare patients who saw Robert Thayer in 2024. The largest group is 65 to 74, with 204 patients. 75% of them have arthritis, and 66% have high blood pressure. 4% are also on Medicaid. Their average risk score is 0.90, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Robert Thayer's median patient age at 70, with 64% women.
Robert Thayer's Medicare patients by age, 2024
Robert Thayer's Medicare patients by sex, 2024
- Women19256%
- Men15144%
Chronic conditions among Robert Thayer's Medicare patients, 2024
- Arthritis75%
- High blood pressure66%
- High cholesterol59%
- Depression24%
- Diabetes24%
- Mood disorders24%
- Anxiety22%
- Chronic kidney disease16%
Share of Medicare patients with each condition. A patient can have several.
Robert Thayer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women64%
- Men36%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Robert W. Thayer wrote 933 Medicare Part D claims in 2024
In 2024, Robert Thayer wrote 933 Medicare Part D claims for 350 patients. 88% of them were for generic drugs.
Robert Thayer's Part D claims by kind of drug, 2024
- Generic821 claims88%
- Brand-name112 claims12%
Drug classes CMS tracks in Robert Thayer's Part D claims, 2024
- Opioids35%331 of 933 claims
- Antibiotics26%243 of 933 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Robert W. Thayer takes part in Medicare
Robert Thayer accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Robert W. Thayer received $50 in industry payments in 2025
CMS Open Payments shows 3 general payments to Robert Thayer from 3 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Heron Therapeutics, Inc. paid the most, $20.
Companies that paid Robert Thayer the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Robert W. Thayer's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Robert W. Thayer
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Robert W. Thayer's NPI number?
Robert W. Thayer's NPI number is 1033877782. It was assigned on November 30, 2021, and it is active in the NPI Registry.
What does Robert W. Thayer specialize in?
Robert W. Thayer is a physician assistant in Billings, Montana. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Robert W. Thayer practice?
Robert Thayer practices at 1233 N 30th St, Billings, MT 59101. Robert Thayer's primary practice is St Vincent Healthcare in Billings, Montana. Dmand AI also links Robert Thayer to 3 hospitals and 1 group practice or clinic.
What is Robert W. Thayer's office phone number?
The practice phone on file for Robert Thayer is (406) 237-7000.
What is Robert W. Thayer's medical license number?
Robert Thayer holds Montana license 102234.
Which hospitals is Robert W. Thayer affiliated with?
Robert Thayer is affiliated with Billings Clinic Hospital. Dmand AI links Robert Thayer to 3 more hospitals.
What medical group is Robert W. Thayer part of?
Robert Thayer is linked to Ortho Montana Orthopedics & Sports Medicine, P.C.
Does Robert W. Thayer accept Medicare?
Yes. CMS lists Robert Thayer as accepting Medicare assignment.
How many Medicare patients does Robert W. Thayer see?
CMS counts 343 Medicare patients who saw Robert Thayer in 2024, with an average age of 73.
Has Robert W. Thayer received payments from drug or device companies?
CMS Open Payments shows $50 in general payments to Robert Thayer from 3 companies from 2025 to 2025. The largest total came from Heron Therapeutics, Inc.
How long has Robert W. Thayer been practicing?
Robert Thayer graduated from medical school in 2021, 5 years ago.
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