Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Harshdeep Singh Nat, MD

Individual provider Internal Medicine Physician · NPI 1295984672

Harshdeep Singh Nat, MD is a Hospitalist in New Haven, Connecticut. Qualified in 1998, 28 years ago. Practices with Northeast Medical Group Inc, a 1,360-clinician group and accepts Medicare assignment. Licensed in Connecticut.

Years since qualifying
28
Licensed in
CT
In the registry since
2008
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

20 York Street CB-2041
New Haven, CT 06510 Not confirmed with CMS for 11 years — call before visiting
Phone: (203) 688-4748
Fax: (203) 688-4740
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 49485 (CT)
Internal Medicine Physician Taxonomy 207R00000X · Licence 49485 (CT)

Record details

NPI number1295984672
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 10, 2008
Last updated in NPPESFebruary 4, 2015

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHOSPITALIST
Medical schoolOTHER
Graduated 1998 (28 years in practice)
Group practice Northeast Medical Group Inc — 1360 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients65
Services billed 66 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Northeast Medical Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1360 clinicians in the practice; 12 are shown here.

Other providers in New Haven