Robert Calvin Westbrook, MD
Family Medicine Physician · Roy, UT
Robert Calvin Westbrook, MD is a family medicine physician with a practice address in Roy, Utah, and NPI 1801155312, issued on May 4, 2012. Check the license (Utah 10542452-1205, as entered in NPPES) on the Utah Medical Licensing Board; the Medicare figures below come from public CMS files.
- Name
- Robert Calvin Westbrook
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 10542452-1205 UT
Self-reported in NPPES; status is on the state search - Practice location
- 1915 W 5950 S, Roy, UT 84067
- Phone
- (801) 387-8100
- Enumerated
- May 4, 2012
- Record last updated
- May 29, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (801) 387-8223
- Medicaid ID
- 201112770 IN
- Medicare enrollment
- Enrolled (PECOS I20190625001751); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,411 in Utah → Look up another NPI →
Also registered at 1915 W 5950 S
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Robert Calvin Westbrook in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersUtah Medical Licensing Board
Search for license 10542452-1205Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average family medicine physician in 2024
186 Medicare Part D claims for 130 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Prednisone20 claims
- Amoxicillin13 claims
- Levothyroxine Sodium11 claims
- Montelukast Sodium11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Ihc Health Services IncRoy, UT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert Calvin Westbrook among 1,411 family medicine physician records in Utah
Robert Calvin Westbrook, MD is one of 1,411 family medicine physician records with a practice address in Utah. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 65% of them.
- NPI issued2012 · 65% of these records are older, 32% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2012 · median 2008 among the 942 with a school on file
- Record last updated2019 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Utah practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
21 family medicine physician records list a practice address in Roy
They are 21 of the 407 NPPES records with a practice address in Roy, and 1,411 family medicine physician records in Utah.
All 1,411 in Utah → Every provider in Roy → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Critt Aardema, MDRoy, UT 840671891003265
- Kelly Amann, DORoy, UT 840671134116783
- Enrique Baires, MDRoy, UT 840671548373400
- Zachary Campbell, M.D.Roy, UT 840671326068974
- Kurtis Ellis, M.D.Roy, UT 840671013150218
- Christon Merkley, M.D.Roy, UT 840671356364947
- Mikio Obayashi, M.D.Roy, UT 840671912923541
- Darlene Petersen, M.D.Roy, UT 840671376744433
Common questions
What is Robert Calvin Westbrook, MD's NPI number?
Robert Calvin Westbrook, MD's National Provider Identifier (NPI) is 1801155312, issued on May 4, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Robert Calvin Westbrook, MD located?
The NPPES record lists a practice address at 1915 W 5950 S, Roy, UT, 84067. Phone: (801) 387-8100. Providers update this record themselves, so call before visiting.
How can I verify Robert Calvin Westbrook, MD's license?
NPPES lists Utah license number 10542452-1205, as entered by the provider. Search the Utah Medical Licensing Board at https://secure.utah.gov/llv/search/index.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Robert Calvin Westbrook, MD prescribe under Medicare Part D?
In 2024, Robert Calvin Westbrook, MD had 186 Medicare Part D claims for 130 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.