William Nkemdirim, MD
Internal Medicine Physician · Wethersfield, CT
William Nkemdirim, MD is an internal medicine physician with a practice address in Wethersfield, Connecticut, and NPI 1720656994, issued on Jun 15, 2021. Check the license (Connecticut 81458, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- William Nkemdirim
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 81458 CT
Self-reported in NPPES; status is on the state search - Practice location
- 1290 Silas Deane Hwy, Wethersfield, CT 06109
- Phone
- (187) 770-7444
- Enumerated
- Jun 15, 2021
- Record last updated
- Jun 27, 2025
- Medicare enrollment
- Enrolled (PECOS I20250627002263); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Also registered at 1290 Silas Deane Hwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William Nkemdirim in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 81458Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average internal medicine physician in 2024
303 Medicare Part D claims for 58 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium24 claims
- Metformin Hcl18 claims
- Fluticasone Propionate14 claims
- Tamsulosin Hcl14 claims
- Nifedipine Er13 claims
- Eliquis12 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
- Hartford Healthcare Medical Group Specialists PLLCStorrs, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Nkemdirim among 2,623 internal medicine physician records in Connecticut
William Nkemdirim, MD is one of 2,623 internal medicine physician records with a practice address in Connecticut. 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 2021, is newer than 91% of them.
- NPI issued2021 · 91% of these records are older, 5% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2016 · median 2004 among the 1,646 with a school on file
- Record last updated2025 · 61% 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 Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
24 internal medicine physician records list a practice address in Wethersfield
They are 24 of the 450 NPPES records with a practice address in Wethersfield, and 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in Wethersfield → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Thomas Brown, M.D.Wethersfield, CT 061091053402263
- Jane Buss, M.D.Wethersfield, CT 061091376526988
- Ellyssa Eror, MDWethersfield, CT 061091477539922
- Roberto Medina, MDWethersfield, CT 061091215977855
- Mohammed Memon, M.D.Wethersfield, CT 061091609826668
- Debra Pachucki, M.D.Wethersfield, CT 061091457484487
- Wayne Paulekas, MDWethersfield, CT 061091730166422
- Anne Pinou, MDWethersfield, CT 061091891890216
Common questions
What is William Nkemdirim, MD's NPI number?
William Nkemdirim, MD's National Provider Identifier (NPI) is 1720656994, issued on Jun 15, 2021. An NPI identifies a provider in billing; it is not a license.
Where is William Nkemdirim, MD located?
The NPPES record lists a practice address at 1290 Silas Deane Hwy, Wethersfield, CT, 06109. Phone: (187) 770-7444. Providers update this record themselves, so call before visiting.
How can I verify William Nkemdirim, MD's license?
NPPES lists Connecticut license number 81458, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Nkemdirim, MD prescribe under Medicare Part D?
In 2024, William Nkemdirim, MD had 303 Medicare Part D claims for 58 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.