Ahmet B. Guler, M.D.
Internal Medicine Physician · Saint Louis, MO
Ahmet B. Guler, M.D. is an internal medicine physician with a practice address in Saint Louis, Missouri, and NPI 1790738664, issued on May 19, 2006. Check the license (Missouri 106138, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Ahmet B. Guler
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 106138 MO
Self-reported in NPPES; status is on the state search - Practice location
- 11133 Dunn RD, Saint Louis, MO 63136
- Phone
- (314) 653-5643
- Enumerated
- May 19, 2006
- Record last updated
- Feb 20, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (314) 653-5648
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,604 in Missouri → Look up another NPI →
Also registered at 11133 Dunn RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ahmet B. Guler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license 106138Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,233 Medicare Part D claims for 196 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 58 claims were for opioids.
Most prescribed
- Atorvastatin Calcium92 claims
- Pantoprazole Sodium77 claims
- Amlodipine Besylate44 claims
- Hydralazine Hcl44 claims
- Gabapentin38 claims
- Eliquis37 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.
Ahmet B. Guler among 2,604 internal medicine physician records in Missouri
Ahmet B. Guler, M.D. is one of 2,604 internal medicine physician records with a practice address in Missouri. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 59% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 55% of these records are
- Record last updated2012 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
941 internal medicine physician records list a practice address in Saint Louis
They are 941 of the 27,605 NPPES records with a practice address in Saint Louis, and 2,604 internal medicine physician records in Missouri.
All 2,604 in Missouri → Every provider in Saint Louis → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Stuart Adler, M.D.Saint Louis, MO 631361801819487
- Helal Ekramuddin, M.D.Saint Louis, MO 631361194897207
- Helen Garner, M.D.Saint Louis, MO 631361215191861
- Rick Hummel, MDSt Louis, MO 631361609955483
- Brenda Mallard, MDSaint Louis, MO 631361942322250
- Seema Najam, MDSt Louis, MO 631361396817490
- Olumide Ogunremi, MDSaint Louis, MO 631361114990074
- Jude Onaghise, MDSaint Louis, MO 631361124376942
Common questions
What is Ahmet B. Guler, M.D.'s NPI number?
Ahmet B. Guler, M.D.'s National Provider Identifier (NPI) is 1790738664, issued on May 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ahmet B. Guler, M.D. located?
The NPPES record lists a practice address at 11133 Dunn RD, Saint Louis, MO, 63136. Phone: (314) 653-5643. Providers update this record themselves, so call before visiting.
How can I verify Ahmet B. Guler, M.D.'s license?
NPPES lists Missouri license number 106138, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ahmet B. Guler, M.D. prescribe under Medicare Part D?
In 2024, Ahmet B. Guler, M.D. had 1,233 Medicare Part D claims for 196 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.