Martin D. Weltz, D.O.
Hematology & Oncology Physician · Greenbelt, MD
Martin D. Weltz, D.O. is a hematology & oncology physician with a practice address in Greenbelt, Maryland, and NPI 1740283100, issued on May 31, 2005. Check the license (Maryland D0023743, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Martin D. Weltz
- Credential
- D.O.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- D0023743 MD
02005407A IN
3470 WV
Self-reported in NPPES; status is on the state search - Practice location
- 7525 Greenway Center Dr, Greenbelt, MD 20770
- Phone
- (301) 982-9800
- Enumerated
- May 31, 2005
- Record last updated
- Apr 18, 2022
- Fax
- (301) 982-2420
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 317 in Maryland → Look up another NPI →
Also registered at 7525 Greenway Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Zahra Ahmed, M.D.Family Medicine Physician1124050067
- Meiling Assue, R.D.Registered Dietitian1275763054
- Jyoti Behl, M.D.Psychiatry Physician1255386157
- Thomas Bensinger, M.D.Hematology & Oncology Physician1962405985
- Richard Cohen, D.P.M.Podiatrist1376549345
- Kathleen Cooney, CPNPPediatric Nurse Practitioner1528181690
Verify Martin D. Weltz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0023743Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
56 Medicare Part D claims for 24 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D.
Most prescribed
- Anastrozole18 claims
- Letrozole17 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Martin D. Weltz among 317 hematology & oncology physician records in Maryland
Martin D. Weltz, D.O. is one of 317 hematology & oncology physician records with a practice address in Maryland. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 91% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2022 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Maryland
There are 317 hematology & oncology physician records in Maryland.
All 317 in Maryland → Every provider in Greenbelt → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Sajeev Anand, M.D.Greenbelt, MD 207701194816017
- Thomas Bensinger, M.D.Greenbelt, MD 207701962405985
- Ari Fishman, M.D.Greenbelt, MD 207701407963036
- Modupe Obadina, M.D.Greenbelt, MD 207701649253485
- Chitra Venkatraman, M.D.Greenbelt, MD 207701558354860
- Bogdan Dumitriu, MDUpper Marlboro, MD 207741386819753
- Monica PeravaliUpper Marlboro, MD 207741629464904
- Elizabeth Pfaffenroth, M.D.Largo, MD 207741548426927
Common questions
What is Martin D. Weltz, D.O.'s NPI number?
Martin D. Weltz, D.O.'s National Provider Identifier (NPI) is 1740283100, issued on May 31, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Martin D. Weltz, D.O. located?
The NPPES record lists a practice address at 7525 Greenway Center Dr, Greenbelt, MD, 20770. Phone: (301) 982-9800. Providers update this record themselves, so call before visiting.
How can I verify Martin D. Weltz, D.O.'s license?
NPPES lists Maryland license number D0023743, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Martin D. Weltz, D.O. prescribe under Medicare Part D?
In 2024, Martin D. Weltz, D.O. had 56 Medicare Part D claims for 24 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.