DR. MAX S FLEISHER MD
NPI 1619430600
Student in an Organized Health Care Education/Training Program in Washington, DC

Active since April 08, 2019PECOS Enrolled
2150 PENNSYLVANIA AVE NW, WASHINGTON, DC 20037(202) 741-3000 Get Directions Write a Review

NPPES record last updated: April 30, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 30, 2026, Apr 8, 2019 (2 updates tracked since 2019).

About Dr. Max S Fleisher Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MAX S FLEISHER MD (NPI 1619430600) is an individual student in an organized health care education/training program in Washington, District Of Columbia and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of University Of Florida College Of Medicine (2019).

NPPES Registry Identity

NPI1619430600
Entity TypeIndividualMale
Primary Taxonomy390200000X
Provider Legal NameDR. MAX S FLEISHERCredential: MD
Location Address2150 PENNSYLVANIA AVE NWWashington, DC 20037-3201
Mailing Address2150 Pennsylvania Ave NwWashington, DC 20037-3201 · (202) 741-3000
Sole ProprietorYes
Medical School CMSUniversity Of Florida College Of MedicineGraduated 2019
Enumeration DateApril 8, 2019
Last NPPES UpdateApril 30, 20262 updates tracked since enumeration
NPPES CertifiedApril 30, 2026
✔ NPI 1619430600 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Taxonomy Code390200000X
Definition
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
Also ListedNeurological SurgeryTaxonomy 207T00000X · License 1027505 (MA)
2150 PENNSYLVANIA AVE NW, Washington, DC 20037

Secondary Practice Locations 2

Location 175 Francis StBoston, MA 02115-6110 · Phone (617) 732-5500
Location 255 Fruit StBoston, MA 02114-2696 · Phone (617) 726-2000

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Max S Fleisher Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID345718359
PECOS Enrollment IDI20260507004199
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Max Fleisher reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Internal Medicine
75 FRANCIS ST
Boston, MA 02115
  • Reassigned Medicare billing, Massachusetts enrollment
  • 4,574 clinicians in this Medicare group
General Acute Care Hospital
55 FRUIT ST, BULFINCH 360
Boston, MA 02114
  • Reassigned Medicare billing, Massachusetts enrollment
  • 6,234 clinicians in this Medicare group
Dermatology
55 FRUIT ST, BUL 2
Boston, MA 02114
  • Reassigned Medicare billing, Massachusetts enrollment
  • 6,360 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine
2150 PENNSYLVANIA AVE NW, SUITE 5-416
WASHINGTON, DC 20037
Obstetrics & Gynecology (Obstetrics)
2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037
Student in an Organized Health Care Education/Training Program
2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037
Student in an Organized Health Care Education/Training Program
2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037
Obstetrics & Gynecology (Maternal & Fetal Medicine)
2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037
Internal Medicine (Hematology & Oncology)
2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037
Internal Medicine (Rheumatology)
2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037
Internal Medicine
2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Max Fleisher's NPI number?

The NPI number for Max Fleisher is 1619430600. It was assigned to this individual provider in the NPPES registry on April 8, 2019.

Where is Max Fleisher located?

Max Fleisher practices at 2150 Pennsylvania Ave NW, Washington, DC 20037. The listed phone number is (202) 741-3000.

What is Max Fleisher's specialty?

The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.

Is Max Fleisher enrolled in Medicare?

Yes. Max Fleisher is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Max Fleisher's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Max Fleisher reassigns Medicare benefits to 3 organizations: Brigham & Womens Physicians Organization Inc (Boston, MA), The General Hospital Corporation (Boston, MA) and Massachusetts General Physicians Organization Inc (Boston, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Max Fleisher's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Max Fleisher accept?

Health plans from Anthem Blue Cross and Blue Shield list Max Fleisher as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Max Fleisher was last updated on April 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.