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TIM F GRETEN M.D.
NPI 1518231000
Internal Medicine - Hematology & Oncology in Bethesda, MD

Active since February 29, 2012PECOS Enrolled
NCI BUILDING 10 RM 12N226, 10 CENTER DRIVE, BETHESDA, MD 20892(301) 451-4723 Get Directions Write a Review

NPPES record last updated: February 29, 2012. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Tim F Greten M.d. NPPES

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

TIM F GRETEN M.D. (NPI 1518231000) is an individual hematology & oncology provider in Bethesda, Maryland, licensed in Maryland (D0048405) and active in the NPI registry since February 2012. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1518231000
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameTIM F GRETENCredential: M.D.
Location AddressNCI BUILDING 10 RM 12N226, 10 CENTER DRIVEBethesda, MD 20892-0001
Mailing AddressNci Building 10 Rm 12n226, 10 Center DriveBethesda, MD 20892-0001 · (301) 451-4723
Phone(301) 451-4723
Sole ProprietorYes
Enumeration DateFebruary 29, 2012
✔ NPI 1518231000 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 · D0048405
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.
NCI BUILDING 10 RM 12N226, 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)

Tim F Greten 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.

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.

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 Tim Greten's NPI number?

The NPI number for Tim Greten is 1518231000. It was assigned to this individual provider in the NPPES registry on February 29, 2012.

Where is Tim Greten located?

Tim Greten practices at Nci Building 10 Rm 12n226 10 Center Drive, Bethesda, MD 20892. The listed phone number is (301) 451-4723.

What is Tim Greten's specialty?

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

Is Tim Greten enrolled in Medicare?

Yes. Tim Greten is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Tim Greten was last updated on February 29, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.