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

Alyssa Nicole Reitsma, MD

Individual provider Medical Specialty Clinic/Center · NPI 1205416898

Alyssa Nicole Reitsma, MD is registered under Family Practice in New York, New York. Graduated from Oakland Univ, William Beaumont School of Medicine in 2021, 5 years ago. Practices with The Metrohealth System, a 1,163-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Connecticut, New Jersey and New York.

Years since qualifying
5
Trained at
Oakland Univ, William Beaumont School of Medicine
Licensed in
CT, NJ, NY
In the registry since
2021
Specialties on file
3
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

148 E 38th St
New York, NY 10016-2607
Phone: (844) 359-8363
Fax: (833) 955-3592
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 93 Cherry St Unit G1, New Canaan, CT 06840-5521 — (844) 359-8363
  • 500 W Main St Ste 16, Wyckoff, NJ 07481-1406 — (844) 359-8363

Specialties & licences

Medical Specialty Clinic/Center (primary) Taxonomy 261QM2500X (NY)
Medical Specialty Clinic/Center Taxonomy 261QM2500X (CT)
Medical Specialty Clinic/Center Taxonomy 261QM2500X (NJ)

Record details

NPI number1205416898
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 9, 2021
Last updated in NPPESJuly 21, 2026
Certification dateJuly 21, 2026

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolOAKLAND UNIV, WILLIAM BEAUMONT SCHOOL OF MEDICINE
Graduated 2021 (5 years in practice)
Group practice The Metrohealth System — 1163 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients88
Services billed 206 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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 The Metrohealth System

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1163 clinicians in the practice; 12 are shown here.

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