Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Anastas Kostojchin, MD

Individual provider Internal Medicine Physician · NPI 1700407798

Anastas Kostojchin, MD is an Internal Medicine in Lebanon, New Hampshire. Qualified in 2024, 2 years ago. Practices with Dartmouth-Hitchcock Clinic, a 1,430-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in New Hampshire.

Years since qualifying
2
Licensed in
NH
In the registry since
2020
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1 Medical Center Dr
Lebanon, NH 03756-1000
Phone: (603) 650-5000
Fax: (603) 640-1228
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 3424 Kossuth Ave, Bronx, NY 10467-2410 — (718) 519-5000
  • 130 W Kingsbridge Rd, Bronx, NY 10468-3904 — (718) 584-9000

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 33459 (NH)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1700407798
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 30, 2020
Last updated in NPPESDecember 12, 2025
Certification dateDecember 12, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2024 (2 years in practice)
Group practice Dartmouth-Hitchcock Clinic — 1430 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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