Tammy Lynn Williams, APRN, FNP-C
Family Nurse Practitioner · Oklahoma City, OK
Tammy Lynn Williams, APRN, FNP-C is a family nurse practitioner with a practice address in Oklahoma City, Oklahoma, and NPI 1720526437, issued on Feb 2, 2017. Check the license (Oklahoma 0083947, as entered in NPPES) with the Oklahoma board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Tammy Lynn Williams
- Credential
- APRN, FNP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 0083947 OK
Self-reported in NPPES; status is on the state search - Practice location
- 4629 NW 23RD St, Oklahoma City, OK 73127
- Phone
- (405) 251-8880
- Enumerated
- Feb 2, 2017
- Record last updated
- Sep 25, 2025
- Medicare enrollment
- Enrolled (PECOS I20180126001055); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 2,711 in Oklahoma → Look up another NPI →
Also registered at 4629 NW 23RD St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Tammy Lynn Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oklahoma board licenses this profession
Search for license 0083947Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average family nurse practitioner in 2024
63 Medicare Part D claims for 42 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Cephalexin12 claims
- Methylprednisolone11 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.
Bills Medicare through one group practice
- Archwell Health Professional Services OF Oklahoma LLCOklahoma City, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tammy Lynn Williams among 2,711 family nurse practitioner records in Oklahoma
Tammy Lynn Williams, APRN, FNP-C is one of 2,711 family nurse practitioner records with a practice address in Oklahoma. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 38% of them.
- NPI issued2017 · 38% of these records are older, 55% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2016 · median 2018 among the 1,783 with a school on file
- Record last updated2025 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
577 family nurse practitioner records list a practice address in Oklahoma City
They are 577 of the 22,359 NPPES records with a practice address in Oklahoma City, and 2,711 family nurse practitioner records in Oklahoma.
All 2,711 in Oklahoma → Every provider in Oklahoma City → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Allison Alexander, NPOklahoma City, OK 731271154961621
- Melody Clanton, APRNOklahoma City, OK 731271134594674
- Mary Fazio, DNP, APRN, FNP-COklahoma City, OK 731271093163248
- Christian Henson, ARNPOklahoma City, OK 731271497315824
- Lindsey LeeOklahoma City, OK 731271447137658
- Rebecca Poe, APRN CNPOklahoma City, OK 731271851732036
- Lakin Urias, NPOklahoma City, OK 731271013653112
- Priya Jaison, FNP-COklahoma City, OK 731281023592847
Common questions
What is Tammy Lynn Williams, APRN, FNP-C's NPI number?
Tammy Lynn Williams, APRN, FNP-C's National Provider Identifier (NPI) is 1720526437, issued on Feb 2, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Tammy Lynn Williams, APRN, FNP-C located?
The NPPES record lists a practice address at 4629 NW 23RD St, Oklahoma City, OK, 73127. Phone: (405) 251-8880. Providers update this record themselves, so call before visiting.
How can I verify Tammy Lynn Williams, APRN, FNP-C's license?
NPPES lists Oklahoma license number 0083947, as entered by the provider. Search the Oklahoma board that licenses this profession; the NPPES record confirms identity only.
How much does Tammy Lynn Williams, APRN, FNP-C prescribe under Medicare Part D?
In 2024, Tammy Lynn Williams, APRN, FNP-C had 63 Medicare Part D claims for 42 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.