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

Individual provider Orthopaedic Hand Surgery Physician · NPI 1689652711

Dr. Mark Phillips Altman, MD practises Orthopedic Surgery in Hamden, Connecticut. Graduated from Albert Einstein College of Medicine of Yeshiva University in 1982, 44 years ago. Practices with Northeast Medical Group Inc, a 1,360-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Connecticut.

Years since qualifying
44
Trained at
Albert Einstein College of Medicine of Yeshiva University
Licensed in
CT
In the registry since
2006
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

2200 Whitney Ave Ste 170
Hamden, CT 06518-3694
Phone: (203) 408-2700
Fax: (203) 884-8201
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 350 Goose Ln Ste 203b, Guilford, CT 06437-2158 — (203) 408-2700

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence 038149 (CT)
Orthopaedic Hand Surgery Physician Taxonomy 207XS0106X · Licence 38149 (CT)

Record details

NPI number1689652711
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 9, 2006
Last updated in NPPESOctober 8, 2020
Certification dateOctober 8, 2020

Medicare enrollment

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

Medicare specialtyORTHOPEDIC SURGERY
Also practisesHAND SURGERY
Medical schoolALBERT EINSTEIN COLLEGE OF MEDICINE OF YESHIVA UNIVERSITY
Graduated 1982 (44 years in practice)
Group practice Northeast Medical Group Inc — 1360 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations10 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of tissue 1–10 times
Upper limb (arm) arthroscopy (minimally invasive joint repair) 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients337
Services billed 2,560 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.

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.