Thomas D. Eisen, MD
Nephrology Physician · New Haven, CT
Thomas D. Eisen, MD is a nephrology physician with a practice address in New Haven, Connecticut, and NPI 1427044684, issued on Sep 23, 2005. Check the license (Connecticut 28182, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Thomas D. Eisen
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 28182 CT
Self-reported in NPPES; status is on the state search - Practice location
- 136 Sherman Ave, New Haven, CT 06511
- Phone
- (203) 787-0117
- Enumerated
- Sep 23, 2005
- Record last updated
- Oct 11, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (203) 777-3559
- Medicaid ID
- 001281823 CT
- Medicare enrollment
- Enrolled (PECOS I20100728001178); accepts Medicare assignment
- Medical or professional school
- New York University Medical College - Nlg, 1983
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 167 in Connecticut → Look up another NPI →
Also registered at 136 Sherman Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Amodeo, MDSurgery Physician1871526772
- Michelle BookalAdult Health Nurse Practitioner1205780848
- Quiona Brooks, NPFamily Nurse Practitioner1629792593
- Lisa Cantey, PA-CPhysician Assistant1750376455
- Hugh Carey, MDNephrology Physician1255327276
- Effie Chang, MDGynecology Physician1487668943
Verify Thomas D. Eisen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 28182Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
44% fewer Medicare Part D claims than the average nephrology physician in 2024
817 Medicare Part D claims for 155 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.
Most prescribed
- Losartan Potassium93 claims
- Amlodipine Besylate91 claims
- Furosemide58 claims
- Hydrochlorothiazide40 claims
- Hydralazine Hcl34 claims
- Farxiga30 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): 91.5 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,412.97
64 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 8,230 providers of this specialty with any payment received $3,091.37 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
- Metabolism Associates PCNew Haven, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thomas D. Eisen among 167 nephrology physician records in Connecticut
Thomas D. Eisen, MD is one of 167 nephrology physician records with a practice address in Connecticut. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 70% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1983 · median 2002 among the 116 with a school on file
- Record last updated2011 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Connecticut
There are 167 nephrology physician records in Connecticut.
All 167 in Connecticut → Every provider in New Haven → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Hugh Carey, MDNew Haven, CT 065111255327276
- Eric Chacko, M.D.New Haven, CT 065111437654662
- Sue Chang, MDNew Haven, CT 065111528054848
- Fredric Finkelstein, MDNew Haven, CT 065111851387088
- Daniel Geisser, MDNew Haven, CT 065111558346056
- Joni Hansson, MDNew Haven, CT 065111760478077
- Alan Kliger, MDNew Haven, CT 065111619963923
- Shirin Shirani, MDNew Haven, CT 065111891781191
Common questions
What is Thomas D. Eisen, MD's NPI number?
Thomas D. Eisen, MD's National Provider Identifier (NPI) is 1427044684, issued on Sep 23, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Thomas D. Eisen, MD located?
The NPPES record lists a practice address at 136 Sherman Ave, New Haven, CT, 06511. Phone: (203) 787-0117. Providers update this record themselves, so call before visiting.
How can I verify Thomas D. Eisen, MD's license?
NPPES lists Connecticut license number 28182, 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 Thomas D. Eisen, MD prescribe under Medicare Part D?
In 2024, Thomas D. Eisen, MD had 817 Medicare Part D claims for 155 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
What is Thomas D. Eisen, MD's MIPS final score?
The 2023 MIPS final score is 91.5 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.