Alyssa Nicole Reitsma, MD
Family Practice (CMS) · New York, NY
At a glance
148 E 38Th St, New York, NY 10016-2607
NPPES record updated Jul 21, 2026. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
148 E 38Th StNew York, NY 10016-2607
Additional reported practice locations
93 Cherry St Unit G1New Canaan, CT 068405521
Phone: 8443598363
Fax: 8339293520 500 W Main St Ste 16
Wyckoff, NJ 074811406
Phone: 8443598363
Fax: 8339293520
Education & affiliations
- Medical / professional school
- Oakland Univ, William Beaumont School Of Medicine
- Graduation year
- 2021
- CMS specialties
- Family Practice
Practice groups
Reported hospital affiliations
- Beaumont Hospital, Troy Troy, MI
- Metrohealth System Cleveland, OH
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Family Practice (CMS)
- Taxonomy code
- 261QM2500X
- Enumeration date
- Apr 9, 2021
- Record updated
- Jul 21, 2026
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- MD
Reported taxonomies and licenses
261QM2500X
261QM2500X
261QM2500X · Primary
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
148 E 38Th StNew York, NY 10016-2607
- Phone
- (844) 359-8363
- Fax
- (833) 955-3592
Mailing address
120 NW 62ND ST APT 1102GAINESVILLE, FL 326070108
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
Report a directory issue