NPPES file of Aug 9, 2026

Thelma Afua Simpaa Osei

Family Nurse Practitioner · Waterbury, CT

Thelma Afua Simpaa Osei is a family nurse practitioner with a practice address in Waterbury, Connecticut, and NPI 1225685811, issued on Aug 20, 2019. Check the license (Connecticut 8410, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1225685811
Name
Thelma Afua Simpaa Osei
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
8410 CT
Self-reported in NPPES; status is on the state search
Practice location
969 W Main St, Waterbury, CT 06708
Phone
(203) 753-2119
Enumerated
Aug 20, 2019
Record last updated
Aug 20, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20191009001513); accepts Medicare assignment
Medical or professional school
University Of Connecticut School Of Medicine, 2019
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 969 W Main St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Latanya Bizor, MSW, LCSWClinical Social Worker1770824757
  2. Jeffrey Boyd, MDPsychiatry Physician1083697114
  3. Anne McNulty, M.D.Obstetrics & Gynecology Physician1356365571
  4. Maureen Obrien, MSWClinical Social Worker1962486746
  5. Kate Rooney, APRNPrimary Care Nurse Practitioner1558880435

Verify Thelma Afua Simpaa Osei in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
    Search for license 8410
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Connecticut license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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92% fewer Medicare Part D claims than the average family nurse practitioner in 2024

110 Medicare Part D claims for 77 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Thelma Osei110
  2. Specialty average1,305

Most prescribed

  1. Azithromycin24 claims
  2. Prednisone22 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): 81.5 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.

  1. Qualityout of 100 · 30% of the final score72.0
  2. Costout of 100 · 30%54.4
  3. Promoting interoperabilityout of 100 · 25%88.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $252.46

5 payments; by number, the most common kind was food and beverage; the largest payer was Ferring Pharmaceuticals Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Thelma Osei$252.46
  2. Specialty average$650.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

One hospital affiliation

  1. Bridgeport HospitalBridgeport, CT · Acute Care Hospitals4 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Thelma Afua Simpaa Osei among 2,669 family nurse practitioner records in Connecticut

Thelma Afua Simpaa Osei is one of 2,669 family nurse practitioner records with a practice address in Connecticut. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 53% of them.

  • NPI issued2019 · 53% of these records are older, 41% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2019 · median 2018 among the 1,664 with a school on file
  • Record last updated2019 · 43% 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 Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

75 family nurse practitioner records list a practice address in Waterbury

They are 75 of the 3,148 NPPES records with a practice address in Waterbury, and 2,669 family nurse practitioner records in Connecticut.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Matthew Balanda, APRNWaterbury, CT 067081447651690
  2. Kimberely Casagni, A.P.R.N.-FNPWaterbury, CT 067081427158781
  3. Elisha Christianson, FNPWaterbury, CT 067081609124528
  4. Doreen Graham, APRNWaterbury, CT 067081871509968
  5. Steven Jeske, FNP-BCWaterbury, CT 067081033414867
  6. Melanie Nesprido, APRN FNPWaterbury, CT 067081124484357
  7. Margaret Omojola, A.P.R.N.Waterbury, CT 067081285070854
  8. Jennifer Ouellette, APRNWaterbury, CT 067081912296419

Common questions

What is Thelma Afua Simpaa Osei's NPI number?

Thelma Afua Simpaa Osei's National Provider Identifier (NPI) is 1225685811, issued on Aug 20, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Thelma Afua Simpaa Osei located?

The NPPES record lists a practice address at 969 W Main St, Waterbury, CT, 06708. Phone: (203) 753-2119. Providers update this record themselves, so call before visiting.

How can I verify Thelma Afua Simpaa Osei's license?

NPPES lists Connecticut license number 8410, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.

How much does Thelma Afua Simpaa Osei prescribe under Medicare Part D?

In 2024, Thelma Afua Simpaa Osei had 110 Medicare Part D claims for 77 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

What is Thelma Afua Simpaa Osei's MIPS final score?

The 2023 MIPS final score is 81.5 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.