Gary William Lambert, DO
Family Medicine Physician · Muskogee, OK
Gary William Lambert, DO is a family medicine physician with a practice address in Muskogee, Oklahoma, and NPI 1619068715, issued on Sep 27, 2006. Check the license (Oklahoma 1950, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Gary William Lambert
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 1950 OK
Self-reported in NPPES; status is on the state search - Practice location
- 620 E Okmulgee, Muskogee, OK 74403
- Phone
- (918) 682-1433
- Enumerated
- Sep 27, 2006
- Record last updated
- Sep 27, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (918) 682-4037
- Medicaid ID
- 100111420A OK
- Medicare enrollment
- Enrolled (PECOS I20070412000545); accepts Medicare assignment
- Medical or professional school
- Oklahoma State University College Of Osteopathic Medicine, 1978
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,303 in Oklahoma → Look up another NPI →
Also registered at 620 E Okmulgee
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dona Davis, ARNPFamily Medicine Physician1528071032
Verify Gary William Lambert 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 1950Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8.6 times the Medicare Part D claims of the average family medicine physician in 2024
30,348 Medicare Part D claims for 855 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 1,110 claims were for opioids.
Most prescribed
- Atorvastatin Calcium1,430 claims
- Levothyroxine Sodium1,350 claims
- Furosemide875 claims
- Potassium Chloride789 claims
- Gabapentin783 claims
- Amlodipine Besylate758 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 MIPS final score for 2023 (Medicare payment program): 8.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Gary William Lambert among 2,303 family medicine physician records in Oklahoma
Gary William Lambert, DO is one of 2,303 family medicine physician records with a practice address in Oklahoma. 79% 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 13% of them.
- NPI issued2006 · 13% of these records are older, 53% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1978 · median 2008 among the 1,407 with a school on file
- Record last updated2016 · 60% 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 Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
31 family medicine physician records list a practice address in Muskogee
They are 31 of the 1,769 NPPES records with a practice address in Muskogee, and 2,303 family medicine physician records in Oklahoma.
All 2,303 in Oklahoma → Every provider in Muskogee → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Constance Baker, MDMuskogee, OK 744031598415200
- Dona Davis, ARNPMuskogee, OK 744031528071032
- Harold Demoss, M.D.Muskogee, OK 744031245227420
- Jimmie Hill, DOMuskogee, OK 744031528396546
- Diane Johnston, M.D.Muskogee, OK 744031861597197
- Leticea Newton, MDMuskogee, OK 744031265422281
- Patrice Pace, DOMuskogee, OK 744031164561270
- Jana Smith, MDMuskogee, OK 744031427360437
Common questions
What is Gary William Lambert, DO's NPI number?
Gary William Lambert, DO's National Provider Identifier (NPI) is 1619068715, issued on Sep 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gary William Lambert, DO located?
The NPPES record lists a practice address at 620 E Okmulgee, Muskogee, OK, 74403. Phone: (918) 682-1433. Providers update this record themselves, so call before visiting.
How can I verify Gary William Lambert, DO's license?
NPPES lists Oklahoma license number 1950, 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 Gary William Lambert, DO prescribe under Medicare Part D?
In 2024, Gary William Lambert, DO had 30,348 Medicare Part D claims for 855 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Gary William Lambert, DO's MIPS final score?
The 2023 MIPS final score is 8.4 of 100. 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.