Douglas Gladstone, M.D.
Medical Oncology Physician · Baltimore, MD
Douglas Gladstone, M.D. is a medical oncology physician with a practice address in Baltimore, Maryland, and NPI 1386660207, issued on Jul 14, 2006. Check the license (Maryland D50264, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Douglas Gladstone
- Credential
- M.D.
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License numbers
- D50264 MD
193432 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1650 Orleans St, Baltimore, MD 21287
- Phone
- (443) 287-6471
- Enumerated
- Jul 14, 2006
- Record last updated
- Apr 16, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (410) 955-8893
- Medicaid IDs
- 01581671 NY
264401100 MD - Medicare enrollment
- Enrolled (PECOS I20040331001672); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 1992
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 224 in Maryland → Look up another NPI →
Also registered at 1650 Orleans St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Colum Dennehy, MB BCHHematology & Oncology Physician1346977568
- Robyn Gartrell, MDPediatric Hematology & Oncology Physician1104147487
- Noah Hahn, M.D.Hematology & Oncology Physician1376582197
- Valentina Hoyos Velez, M.D.Internal Medicine Physician1700111747
- Jenny Kim, MDHematology & Oncology Physician1629244389
- Mario Lemas, PH.D.Clinical Laboratory Director (Non-physician)1851576748
Verify Douglas Gladstone in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D50264Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% fewer Medicare Part D claims than the average medical oncology physician in 2024
434 Medicare Part D claims for 65 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 44% of claims.
Most prescribed
- Calquence55 claims
- Sulfamethoxazole-Trimethoprim36 claims
- Venclexta31 claims
- Mirtazapine24 claims
- Duloxetine Hcl21 claims
- Brukinsa20 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 74.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $5,292.64
11 payments; by number, the most common kind was food and beverage; the largest payer was Adaptive Biotechnologies Corporation. The 3,343 providers of this specialty with any payment received $11,773.47 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- North Shore Health System Medical Faculty Group Practice IncNew Hyde Park, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Douglas Gladstone among 224 medical oncology physician records in Maryland
Douglas Gladstone, M.D. is one of 224 medical oncology physician records with a practice address in Maryland. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 53% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated1992 · median 2000 among the 128 with a school on file
- Record last updated2014 · 69% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Oncology Physician providers in Maryland
There are 224 medical oncology physician records in Maryland.
All 224 in Maryland → Every provider in Baltimore → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Richard Ambinder, M.D.Baltimore, MD 212871528022407
- Mary Armanios, M.D.Baltimore, MD 212871588628390
- Atul Bedi, M.D.Baltimore, MD 212871760447114
- Julie Brahmer, M.D.Baltimore, MD 212871982661989
- Patrick Brown, M.D.Baltimore, MD 212871154389633
- Michael Carducci, M.D.Baltimore, MD 212871952369977
- Allen Chen, M.D.Baltimore, MD 212871114976065
- Curt Civin, M.D.Baltimore, MD 212871962453076
Common questions
What is Douglas Gladstone, M.D.'s NPI number?
Douglas Gladstone, M.D.'s National Provider Identifier (NPI) is 1386660207, issued on Jul 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Douglas Gladstone, M.D. located?
The NPPES record lists a practice address at 1650 Orleans St, Baltimore, MD, 21287. Phone: (443) 287-6471. Providers update this record themselves, so call before visiting.
How can I verify Douglas Gladstone, M.D.'s license?
NPPES lists Maryland license number D50264, 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 Douglas Gladstone, M.D. prescribe under Medicare Part D?
In 2024, Douglas Gladstone, M.D. had 434 Medicare Part D claims for 65 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.
What is Douglas Gladstone, M.D.'s MIPS final score?
The 2023 MIPS final score is 74.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.