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MARIAN FLEISCHER M.D.
NPI 1861671653
Colon & Rectal Surgery in Brooklyn, NY

Active since October 29, 2007PECOS Enrolled
9707 FOURTH AVENUE, BROOKLYN, NY 11209(914) 963-1400(914) 722-6102 Get Directions Write a Review

NPPES record last updated: April 29, 2014. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Marian Fleischer M.d. NPPES

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

MARIAN FLEISCHER M.D. (NPI 1861671653) is an individual colon & rectal surgery provider in Brooklyn, New York, licensed in New York (137530) and active in the NPI registry since October 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1861671653
Entity TypeIndividualMale
Primary Taxonomy208C00000X
Provider Legal NameMARIAN FLEISCHERCredential: M.D.
Location Address9707 FOURTH AVENUEBrooklyn, NY 11209
Mailing AddressPo Box 414Harisdale, NY 10530 · (718) 836-3603 · Fax (914) 722-6102
Phone(914) 963-1400
Fax(914) 722-6102
Sole ProprietorYes
Enumeration DateOctober 29, 2007
Last NPPES UpdateApril 29, 2014
✔ NPI 1861671653 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyColon & Rectal SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208C00000X
License✔ Licensed in NY · 137530
Definition
A colon and rectal surgeon is trained to diagnose and treat various diseases of the intestinal tract, colon, rectum, anal canal and perianal area by medical and surgical means. This specialist also deals with other organs and tissues (such as the liver, urinary and female reproductive system) involved with primary intestinal disease.
9707 FOURTH AVENUE, Brooklyn, NY 11209
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Other Identifiers 4

Medicare UPINB19141
Medicare PIN74A18
Medicare PIN74A181
Medicaid00727940NY

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Marian Fleischer M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignment

Medicare enrollment records show Marian Fleischer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Maimonides Faculty Practice Plan
2.5 mi
Internal Medicine
4802 10TH AVE
Brooklyn, NY 11219
  • Reassigned Medicare billing, New York enrollment
  • 1,177 clinicians in this Medicare group
NPI 1053344846 (718) 283-8700

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11209 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$105.06 typical visit price
range $67.40 – $203.53
Typical copayment $26.26 (range $16.85 – $50.88)
Most-billed visit code 99203
Established Patient
$83.44 typical visit price
range $21.66 – $164.45
Typical copayment $20.86 (range $5.41 – $41.11)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Marian Fleischer's NPI number?

The NPI number for Marian Fleischer is 1861671653. It was assigned to this individual provider in the NPPES registry on October 29, 2007.

Where is Marian Fleischer located?

Marian Fleischer practices at 9707 Fourth Avenue, Brooklyn, NY 11209. The listed phone number is (914) 963-1400.

What is Marian Fleischer's specialty?

The primary specialty registered for this NPI is Colon & Rectal Surgery with taxonomy code 208C00000X.

Is Marian Fleischer enrolled in Medicare?

Yes. Marian Fleischer is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Marian Fleischer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marian Fleischer reassigns Medicare benefits to Maimonides Faculty Practice Plan (Brooklyn, NY). The 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 Marian Fleischer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Marian Fleischer was last updated on April 29, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years 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.