Kristen Nwanyanwu, M.D., M.B.A.
Ophthalmology Physician · New Haven, CT
Kristen Nwanyanwu, M.D., M.B.A. is an ophthalmology physician with a practice address in New Haven, Connecticut, and NPI 1881821700, issued on Jun 18, 2009. Check the license (Connecticut 54388, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Kristen Nwanyanwu
- Credential
- M.D., M.B.A.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License numbers
- 54388 CT
036132910 IL
4301097274 MI
MT195314 PA
Self-reported in NPPES; status is on the state search - Practice location
- 40 Temple St, New Haven, CT 06510
- Phone
- (203) 785-2020
- Enumerated
- Jun 18, 2009
- Record last updated
- Jul 24, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20150915000766); accepts Medicare assignment
- Medical or professional school
- Perelman School Of Med At The University Of Pennsylvania, 2009
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 336 in Connecticut → Look up another NPI →
Also registered at 40 Temple St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kirsten AckermanRegistered Dietitian1396298485
- Badr Al Bawardy, MDGastroenterology Physician1104111509
- Yonca Arat, MDOphthalmic Plastic and Reconstructive Surgery Physician1861646986
- Harry Aslanian, MDGastroenterology Physician1295718401
- Ashley Beesley, FNPFamily Nurse Practitioner1629834585
- Jennifer Bennick, APRNFamily Nurse Practitioner1770886764
Verify Kristen Nwanyanwu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 54388Check 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 ophthalmology physician in 2024
76 Medicare Part D claims for 29 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 34% of claims.
Most prescribed
- Timolol Maleate12 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): 73.6 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $293.19
3 payments; by number, the most common kind was food and beverage; the largest payer was Sun Pharmaceutical Industries Inc. The 13,221 providers of this specialty with any payment received $4,535.02 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
- Yale UniversityGuilford, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kristen Nwanyanwu among 336 ophthalmology physician records in Connecticut
Kristen Nwanyanwu, M.D., M.B.A. is one of 336 ophthalmology physician 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 2009, is newer than 76% of them.
- NPI issued2009 · 76% of these records are older, 21% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2009 · median 2000 among the 212 with a school on file
- Record last updated2015 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Connecticut
There are 336 ophthalmology physician records in Connecticut.
All 336 in Connecticut → Every provider in New Haven → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Jessica Chow, M.D.New Haven, CT 065101790951135
- Anthony Daniels, MDNew Haven, CT 065101659532646
- Lucian Del Priore, M.D.New Haven, CT 065101790702769
- Michael Ehrlich, M.D.New Haven, CT 065101003034042
- Paul Kang, MDNew Haven, CT 065101487680070
- Ji Liu, M.D.New Haven, CT 065101114157104
- Jennifer Renz, M.D.New Haven, CT 065101922241793
- Aryan Shayegani, MDNew Haven, CT 065101114902301
Common questions
What is Kristen Nwanyanwu, M.D., M.B.A.'s NPI number?
Kristen Nwanyanwu, M.D., M.B.A.'s National Provider Identifier (NPI) is 1881821700, issued on Jun 18, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Kristen Nwanyanwu, M.D., M.B.A. located?
The NPPES record lists a practice address at 40 Temple St, New Haven, CT, 06510. Phone: (203) 785-2020. Providers update this record themselves, so call before visiting.
How can I verify Kristen Nwanyanwu, M.D., M.B.A.'s license?
NPPES lists Connecticut license number 54388, 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 Kristen Nwanyanwu, M.D., M.B.A. prescribe under Medicare Part D?
In 2024, Kristen Nwanyanwu, M.D., M.B.A. had 76 Medicare Part D claims for 29 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Kristen Nwanyanwu, M.D., M.B.A.'s MIPS final score?
The 2023 MIPS final score is 73.6 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.