Nathan Alfons Kruger, M.D.
Cardiovascular Disease Physician · North Haven, CT
Nathan Alfons Kruger, M.D. is a cardiovascular disease physician with a practice address in North Haven, Connecticut, and NPI 1801992417, issued on Sep 15, 2006. Check the license (Connecticut 043929, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Nathan Alfons Kruger
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- 043929 CT
Self-reported in NPPES; status is on the state search - Practice location
- 2 Devine Street, North Haven, CT 06473
- Phone
- (203) 789-2272
- Enumerated
- Sep 15, 2006
- Record last updated
- Feb 27, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (203) 865-8614
- Medicare enrollment
- Enrolled (PECOS I20090320000386); accepts Medicare assignment
- Medical or professional school
- New York Medical College, 2002
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 2 Devine Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Vincent Dicola, MD, FACC, NASPEInterventional Cardiology Physician1013928431
- Lisa Freed, MD, FACCCardiovascular Disease Physician1750382453
- Jaime Gerber, M.D., F.A.C.C.Cardiovascular Disease Physician1346251709
- Eric Grubman, MD, FACC, NASPEClinical Cardiac Electrophysiology Physician1124039490
- Douglas Israel, M.D., F.A.C.C.Interventional Cardiology Physician1366453680
- Steven Jacoby, M.D., F.A.C.C.Cardiovascular Disease Physician1215948526
Verify Nathan Alfons Kruger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 043929Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.6 times the Medicare Part D claims of the average cardiovascular disease physician in 2024
11,136 Medicare Part D claims for 1,320 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Atorvastatin Calcium1,316 claims
- Rosuvastatin Calcium1,304 claims
- Ezetimibe1,132 claims
- Losartan Potassium711 claims
- Metoprolol Succinate671 claims
- Amlodipine Besylate616 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).
Bills Medicare through one group practice
- Yale UniversityNew Haven, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
8 cardiovascular disease physician records list a practice address in North Haven
They are 8 of the 539 NPPES records with a practice address in North Haven, and 503 cardiovascular disease physician records in Connecticut.
All 8 in North Haven → All 503 in Connecticut → Every provider in North Haven →
Other cardiovascular disease physician records in Connecticut
- Khaled AbazaMiddletown, CT1255986121
- Binny Abraham, M.D.New Haven, CT1760657647
- Joseph Abreu, MDTorrington, CT1003996240
- Arun Agarwal, M.D.New Britain, CT1326226044
- Sneha Agarwalla, MDBloomfield, CT1801245162
- Elliot Agin, M.D.Milford, CT1790729093
- Tariq Ahmad, M.D.New Haven, CT1104955699
- Zain Ahmed, M.D.Wallingford, CT1952782567
- Keshava Aithal, MDMiddletown, CT1811005713
- Joseph Akar, MDNew Haven, CT1558430058
Common questions
What is Nathan Alfons Kruger, M.D.'s NPI number?
Nathan Alfons Kruger, M.D.'s National Provider Identifier (NPI) is 1801992417, issued on Sep 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nathan Alfons Kruger, M.D. located?
The NPPES record lists a practice address at 2 Devine Street, North Haven, CT, 06473. Phone: (203) 789-2272. Providers update this record themselves, so call before visiting.
How can I verify Nathan Alfons Kruger, M.D.'s license?
NPPES lists Connecticut license number 043929, 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 Nathan Alfons Kruger, M.D. prescribe under Medicare Part D?
In 2024, Nathan Alfons Kruger, M.D. had 11,136 Medicare Part D claims for 1,320 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.
What is Nathan Alfons Kruger, M.D.'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.