Erin Marie Williamson, R.N.,MSN,APRN
Nurse Practitioner · Tulsa, OK
Erin Marie Williamson, R.N.,MSN,APRN is a nurse practitioner with a practice address in Tulsa, Oklahoma, and NPI 1487884995, issued on Jul 17, 2009. Check the license (Oklahoma 106894, as entered in NPPES) with the Oklahoma board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Erin Marie Williamson
- Credential
- R.N.,MSN,APRN
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- 106894 OK
5374935091 KS
Self-reported in NPPES; status is on the state search - Practice location
- 1145 S. Utica Ave., Tulsa, OK 74104
- Phone
- (918) 582-6544
- Enumerated
- Jul 17, 2009
- Record last updated
- May 6, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (918) 582-6549
- Medicaid ID
- 200458360A OK
- Medicare enrollment
- Enrolled (PECOS I20121108000235); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 700 in Oklahoma → Look up another NPI →
Also registered at 1145 S. Utica Ave.
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Demetra Pinos, M.S., CCC-SLPSpeech-Language Pathologist1427268218
- Megan Simpson, APRNFamily Nurse Practitioner1013419662
Verify Erin Marie Williamson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oklahoma board licenses this profession
Search for license 106894Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3% fewer Medicare Part D claims than the average nurse practitioner in 2024
1,079 Medicare Part D claims for 301 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 31% of claims.
Most prescribed
- Pantoprazole Sodium188 claims
- Omeprazole96 claims
- Linzess78 claims
- Creon60 claims
- Gavilyte-G47 claims
- Ondansetron Odt47 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): 97.6 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).
Industry payments in 2024: $2,176.26
102 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 38,884 providers of this specialty with any payment received $791.64 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.
Bills Medicare through one group practice
- Ahs Oklahoma Physician Group LLCTulsa, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Erin Marie Williamson among 700 nurse practitioner records in Oklahoma
Erin Marie Williamson, R.N.,MSN,APRN is one of 700 nurse practitioner records with a practice address in Oklahoma. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 26% of them.
- NPI issued2009 · 26% of these records are older, 71% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2008 · median 2017 among the 399 with a school on file
- Record last updated2014 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nurse Practitioner providers in Oklahoma
There are 700 nurse practitioner records in Oklahoma.
All 700 in Oklahoma → Every provider in Tulsa → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Martha Cahalen, APRNTulsa, OK 741041417027780
- Martha Cheatwood, ARNPTulsa, OK 741041528001047
- Huong Huynh, ARNPTulsa, OK 741041255564589
- Terry Jenkins, ARNPTulsa, OK 741041356519060
- Vanessa Kennison, ARNPTulsa, OK 741041578509378
- Shannon Kibble, APRN-CNPTulsa, OK 741041144452848
- Jennifer Lorton, ARNPTulsa, OK 741041255517413
- Gayla McVey, FNPTulsa, OK 741041629251525
Common questions
What is Erin Marie Williamson, R.N.,MSN,APRN's NPI number?
Erin Marie Williamson, R.N.,MSN,APRN's National Provider Identifier (NPI) is 1487884995, issued on Jul 17, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Erin Marie Williamson, R.N.,MSN,APRN located?
The NPPES record lists a practice address at 1145 S. Utica Ave., Tulsa, OK, 74104. Phone: (918) 582-6544. Providers update this record themselves, so call before visiting.
How can I verify Erin Marie Williamson, R.N.,MSN,APRN's license?
NPPES lists Oklahoma license number 106894, as entered by the provider. Search the Oklahoma board that licenses this profession; the NPPES record confirms identity only.
How much does Erin Marie Williamson, R.N.,MSN,APRN prescribe under Medicare Part D?
In 2024, Erin Marie Williamson, R.N.,MSN,APRN had 1,079 Medicare Part D claims for 301 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
What is Erin Marie Williamson, R.N.,MSN,APRN's MIPS final score?
The 2023 MIPS final score is 97.6 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.