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

Dr. Nathan Wass, MD

Individual provider Internal Medicine Physician · NPI 1790135606

Dr. Nathan Wass, MD practises Internal Medicine in Boston, Massachusetts. Qualified in 2016, 10 years ago. Practices with Massachusetts General Physicians Organization Inc, a 3,484-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
10
Licensed in
MA
In the registry since
2016
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

50 Staniford St Fl 9
Boston, MA 02114-2506
Phone: (617) 724-6610
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 279022 (MA)

Record details

NPI number1790135606
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 21, 2016
Last updated in NPPESAugust 22, 2023
Certification dateAugust 22, 2023

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Massachusetts General Physicians Organization Inc — 3484 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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 patients360
Services billed 1,348 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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. Those with a page here are linked.

  • Massachusetts General Hospital Hospital · Boston, MA · listed as The General Hospital Corporation
  • Newton-Wellesley Hospital Hospital · Newton, MA · listed as Newton Wellesley Hospital
  • North Shore Medical Center Hospital · Salem, MA
  • Brigham And Women Faulkner Hospital Hospital · Jamaica Plain, MA
  • Brigham And Women'S Hospital Hospital · Boston, MA
  • Mass General Brigham Home Care, Inc Home health agency · Newton, MA

Also affiliated with 2 inpatient rehabilitation facilities, which CMS identifies by certification number only.

Colleagues at Massachusetts General Physicians Organization Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3484 clinicians in the practice; 12 are shown here.

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