Gregory M. Spencer, MD
Internal Medicine Physician · Oklahoma City, OK
Gregory M. Spencer, MD is an internal medicine physician with a practice address in Oklahoma City, Oklahoma, and NPI 1821030826, issued on Jun 12, 2006. Check the license (Oklahoma 14797, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Gregory M. Spencer
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 14797 OK
Self-reported in NPPES; status is on the state search - Practice location
- 5915 W Memorial RD, Oklahoma City, OK 73142
- Phone
- (405) 773-6470
- Enumerated
- Jun 12, 2006
- Record last updated
- Mar 15, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (405) 773-6463
- Medicaid ID
- 100094990A OK
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,115 in Oklahoma → Look up another NPI →
Also registered at 5915 W Memorial RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gregory M. Spencer 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 14797Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20% more Medicare Part D claims than the average internal medicine physician in 2024
3,810 Medicare Part D claims for 382 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 21 claims were for opioids.
Most prescribed
- Levothyroxine Sodium203 claims
- Atorvastatin Calcium202 claims
- Amlodipine Besylate152 claims
- Lisinopril146 claims
- Pravastatin Sodium119 claims
- Metformin Hcl92 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 77.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $157.00
10 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US 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.
Gregory M. Spencer among 1,115 internal medicine physician records in Oklahoma
Gregory M. Spencer, MD 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 updated2018 · 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).
418 internal medicine physician records list a practice address in Oklahoma City
They are 418 of the 22,359 NPPES records with a practice address in Oklahoma City, and 1,115 internal medicine physician records in Oklahoma.
All 1,115 in Oklahoma → Every provider in Oklahoma City → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Dinesh Dalbir, M.D.Oklahoma City, OK 731421912969965
- Ashley Ford, D.O.Oklahoma City, OK 731421366761173
- Tommy Ibrahim, M.D.Oklahoma City, OK 731421023237468
- Linda LucioOklahoma City, OK 731421831394832
- Curtis McElroy, D.O.Oklahoma City, OK 731421972570067
- Andrea Miller, M.D.Oklahoma City, OK 731421346448644
- Gargi Shah, M.D.Oklahoma City, OK 731421932464765
- Thomas Showalter, D.O.Oklahoma City, OK 731421780853358
Common questions
What is Gregory M. Spencer, MD's NPI number?
Gregory M. Spencer, MD's National Provider Identifier (NPI) is 1821030826, issued on Jun 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory M. Spencer, MD located?
The NPPES record lists a practice address at 5915 W Memorial RD, Oklahoma City, OK, 73142. Phone: (405) 773-6470. Providers update this record themselves, so call before visiting.
How can I verify Gregory M. Spencer, MD's license?
NPPES lists Oklahoma license number 14797, 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 Gregory M. Spencer, MD prescribe under Medicare Part D?
In 2024, Gregory M. Spencer, MD had 3,810 Medicare Part D claims for 382 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Gregory M. Spencer, MD's MIPS final score?
The 2023 MIPS final score is 77.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.