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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. JAMES L GULLEY MD PHD FACP
NPI 1720038771
Internal Medicine - Hematology & Oncology in Bethesda, MD

Active since May 11, 2006PECOS Enrolled
10 CENTER DR., 8B08, MSC 1750, BETHESDA, MD 20892(301) 435-2956(301) 480-5094 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. James L Gulley Md Phd Facp NPPES

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

DR. JAMES L GULLEY MD PHD FACP (NPI 1720038771) is an individual hematology & oncology provider in Bethesda, Maryland, licensed in Maryland (D0056966) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1720038771
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameDR. JAMES L GULLEYCredential: MD PHD FACP
Location Address10 CENTER DR., 8B08, MSC 1750Bethesda, MD 20892-0001
Mailing Address10 Center Dr., 8b08, Msc 1750Bethesda, MD 20892-0001 · (301) 435-2956 · Fax (301) 480-5094
Phone(301) 435-2956
Fax(301) 480-5094
Sole ProprietorNo
Enumeration DateMay 11, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1720038771 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 · D0056966
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.
10 CENTER DR., Bethesda, MD 20892
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. James L Gulley Md Phd Facp 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20892 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
$194.86 typical visit price
range $65.18 – $194.86
Typical copayment $48.71 (range $16.29 – $48.71)
Most-billed visit code 99205
Established Patient
$113.72 typical visit price
range $21.40 – $158.88
Typical copayment $28.43 (range $5.35 – $39.72)
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 2

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

POONAM MISHRA M.D.
Internal Medicine
10 CENTER DR., NIH/NIDDK
BETHESDA, MD 20892
Montgomery County (301) 497-5100
MS. LAUREN LENZ WETZLER PA-C
Physician Assistant (Medical)
10 CENTER DR., NATIONAL INSTITUTES OF HEALTH
BETHESDA, MD 20892
Montgomery County (301) 594-0407

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 James Gulley's NPI number?

The NPI number for James Gulley is 1720038771. It was assigned to this individual provider in the NPPES registry on May 11, 2006.

Where is James Gulley located?

James Gulley practices at 10 Center Dr. 8b08, Msc 1750, Bethesda, MD 20892. The listed phone number is (301) 435-2956.

What is James Gulley's specialty?

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

Is James Gulley enrolled in Medicare?

Yes. James Gulley is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for James Gulley was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 29 days 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.