Robert Bryan Graveline, M.D.
Gastroenterology Physician · Ames, IA
Robert Bryan Graveline, M.D. is a gastroenterology physician with a practice address in Ames, Iowa, and NPI 1336137306, issued on Oct 12, 2005. Check the license (Iowa 29795, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Robert Bryan Graveline
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 29795 IA
Self-reported in NPPES; status is on the state search - Practice location
- 3008 Evergreen Cir, Ames, IA 50014
- Phone
- (515) 292-5555
- Enumerated
- Oct 12, 2005
- Record last updated
- Jun 4, 2025
- Medicaid ID
- 0110460 IA
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 122 in Iowa → Look up another NPI →
Verify Robert Bryan Graveline in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license 29795Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.0 times the Medicare Part D claims of the average gastroenterology physician in 2024
1,632 Medicare Part D claims for 795 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Sod Sulf-Potass Sulf-Mag Sulf514 claims
- Omeprazole388 claims
- Gavilyte-G109 claims
- Azathioprine65 claims
- Nortriptyline Hcl65 claims
- Balsalazide Disodium62 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.
Robert Bryan Graveline among 122 gastroenterology physician records in Iowa
Robert Bryan Graveline, M.D. is one of 122 gastroenterology physician records with a practice address in Iowa. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 73% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 69% of these records are
- Record last updated2025 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Iowa
There are 122 gastroenterology physician records in Iowa.
All 122 in Iowa → Every provider in Ames → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Bryan Feyen, DOAmes, IA 500101811042310
- Jeremy Fields, MDAmes, IA 500101285844142
- Jon Fleming, M.D.Ames, IA 500101285622274
- Larry Johnston, D.O.Ames, IA 500101386036333
- Thomas Johnson, M.D.Nevada, IA 502011639168685
- Laura Dakovich, DOWest Des Moines, IA 502661992826432
- Jonathan Fahler, DOWest Des Moines, IA 502661780905729
- Christopher Gibbs, MDWest Des Moines, IA 502661619021144
Common questions
What is Robert Bryan Graveline, M.D.'s NPI number?
Robert Bryan Graveline, M.D.'s National Provider Identifier (NPI) is 1336137306, issued on Oct 12, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Robert Bryan Graveline, M.D. located?
The NPPES record lists a practice address at 3008 Evergreen Cir, Ames, IA, 50014. Phone: (515) 292-5555. Providers update this record themselves, so call before visiting.
How can I verify Robert Bryan Graveline, M.D.'s license?
NPPES lists Iowa license number 29795, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Robert Bryan Graveline, M.D. prescribe under Medicare Part D?
In 2024, Robert Bryan Graveline, M.D. had 1,632 Medicare Part D claims for 795 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.