Michael Alan Weisz, MD FACP
Internal Medicine Physician · Tulsa, OK
Michael Alan Weisz, MD FACP is an internal medicine physician with a practice address in Tulsa, Oklahoma, and NPI 1326018730, issued on Jan 26, 2006. Check the license (Oklahoma 16925, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Michael Alan Weisz
- Credential
- MD FACP
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 16925 OK
Self-reported in NPPES; status is on the state search - Practice location
- 4444 E 41St St, Tulsa, OK 74135
- Phone
- (918) 619-4101
- Enumerated
- Jan 26, 2006
- Record last updated
- Aug 11, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (918) 619-4110
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,115 in Oklahoma → Look up another NPI →
Also registered at 4444 E 41St St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Michael Alan Weisz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOklahoma Board of Medical Licensure and Supervision
Search for license 16925Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average internal medicine physician in 2024
235 Medicare Part D claims for 54 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Valsartan20 claims
- Fluticasone Propionate13 claims
- Albuterol Sulfate Hfa12 claims
- Atorvastatin Calcium11 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.
Industry payments in 2024: $17.05
1 payment: food and beverage; the largest payer was Fresenius USA Marketing, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Michael Alan Weisz among 1,115 internal medicine physician records in Oklahoma
Michael Alan Weisz, MD FACP is one of 1,115 internal medicine physician records with a practice address in Oklahoma. 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 11% of them.
- NPI issued2006 · 11% of these records are older, 57% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2021 · 56% 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 Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
307 internal medicine physician records list a practice address in Tulsa
They are 307 of the 18,643 NPPES records with a practice address in Tulsa, and 1,115 internal medicine physician records in Oklahoma.
All 1,115 in Oklahoma → Every provider in Tulsa → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Pallavi Agarwal, M.D.Tulsa, OK 741351831249812
- Vishal Aggarwal, MDTulsa, OK 741351295705663
- Diana Chen, MDTulsa, OK 741351518919091
- David Gilbert, M.D.Tulsa, OK 741351225176779
- Robert Harris, M.D,Tulsa, OK 741351528061652
- Thomas Hoskison, MDTulsa, OK 741351598735953
- Martina Jelley, MDTulsa, OK 741351427028885
- David Kendrick, MD MPHTulsa, OK 741351952382798
Common questions
What is Michael Alan Weisz, MD FACP's NPI number?
Michael Alan Weisz, MD FACP's National Provider Identifier (NPI) is 1326018730, issued on Jan 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael Alan Weisz, MD FACP located?
The NPPES record lists a practice address at 4444 E 41St St, Tulsa, OK, 74135. Phone: (918) 619-4101. Providers update this record themselves, so call before visiting.
How can I verify Michael Alan Weisz, MD FACP's license?
NPPES lists Oklahoma license number 16925, as entered by the provider. Search the Oklahoma Board of Medical Licensure and Supervision at https://www.okmedicalboard.org/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Michael Alan Weisz, MD FACP prescribe under Medicare Part D?
In 2024, Michael Alan Weisz, MD FACP had 235 Medicare Part D claims for 54 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.