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MARVIN JACK FELDMAN MD
NPI 1336254424
Internal Medicine - Hematology & Oncology in Baltimore, MD

Active since August 20, 2006PECOS Enrolled
227 ST PAUL PLACE, 4TH FLOOR, BALTIMORE, MD 21202(410) 783-5858(410) 783-5864 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Marvin Jack Feldman Md NPPES

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

MARVIN JACK FELDMAN MD (NPI 1336254424) is an individual hematology & oncology provider in Baltimore, Maryland, licensed in Maryland (D07930) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1336254424
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameMARVIN JACK FELDMANCredential: MD
Location Address227 ST PAUL PLACE, 4TH FLOORBaltimore, MD 21202-2001
Mailing Address227 St Paul Place, 4th FloorBaltimore, MD 21202-2001 · (410) 783-5858 · Fax (410) 783-5864
Phone(410) 783-5858
Fax(410) 783-5864
Sole ProprietorNo
Enumeration DateAugust 20, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1336254424 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License✔ Licensed in MD · D07930
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
227 ST PAUL PLACE, Baltimore, MD 21202
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Other Identifiers 5

Other39974701Carefirst Md
Medicare ID-Type Unspecified123L910AMD
Medicare UPIND76185
OtherR8440001Carefirst Dc
Other124054Aetna

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Marvin Jack Feldman Md 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 Reassignments

2

Medicare enrollment records show Marvin Feldman reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

St Paul Place Specialists, Inc.
Same address
Hematology & Oncology
227 SAINT PAUL PLACE, 4TH FLOOR
Baltimore, MD 21202
  • Reassigned Medicare billing, Maryland enrollment
  • 423 clinicians in this Medicare group
NPI 1174564736 (410) 783-5858
Sinai Hospital Of Baltimore Inc
1.2 mi
General Acute Care Hospital
MORTON MOWER, M.D. OFF. BLDG., 2411 W. BELVEDERE AVENUE, 6TH FLOOR
Baltimore, MD 21215
  • Reassigned Medicare billing, Maryland enrollment
  • 664 clinicians in this Medicare group
NPI 1437174059 (410) 601-5700

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 21202 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
$183.44 typical visit price
range $60.73 – $183.44
Typical copayment $45.86 (range $15.18 – $45.86)
Most-billed visit code 99205
Established Patient
$106.59 typical visit price
range $19.60 – $149.17
Typical copayment $26.64 (range $4.90 – $37.29)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 5

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

DAVID ANDREW RISEBERG MD
Internal Medicine (Medical Oncology)
227 ST PAUL PLACE, 4TH FLOOR
BALTIMORE, MD 21202
Baltimore City (410) 783-5858
ST PAUL PLACE SPECIALISTS, INC.
Surgery
227 ST PAUL PLACE
BALTIMORE, MD 21202
Baltimore City (410) 332-9000
PANAYOTIS LEDAKIS MD
Internal Medicine (Hematology & Oncology)
227 ST PAUL PLACE, 4TH FLOOR
BALTIMORE, MD 21202
Baltimore City (410) 783-5858
ASHLEE BROOKE VARGASON MGC, CGC
Genetic Counselor, MS
227 ST PAUL PLACE, 3RD FLOOR OF WEINBERG
BALTIMORE, MD 21202
Baltimore City (410) 951-7950
MERCY MEDICAL CENTER, INC.
Pharmacy (Community/Retail Pharmacy)
227 ST PAUL PLACE
BALTIMORE, MD 21202
Baltimore City (410) 801-3291

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 Marvin Feldman's NPI number?

The NPI number for Marvin Feldman is 1336254424. It was assigned to this individual provider in the NPPES registry on August 20, 2006.

Where is Marvin Feldman located?

Marvin Feldman practices at 227 St Paul Place 4th Floor, Baltimore, MD 21202. The listed phone number is (410) 783-5858.

What is Marvin Feldman's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Marvin Feldman enrolled in Medicare?

Yes. Marvin Feldman is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Marvin Feldman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marvin Feldman reassigns Medicare benefits to 2 organizations: St Paul Place Specialists, Inc. (Baltimore, MD) and Sinai Hospital Of Baltimore Inc (Baltimore, MD). 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 Marvin Feldman'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 Marvin Feldman was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.