Leonard Stuart Bloom, MD
Urology Physician · Rockville, MD
Leonard Stuart Bloom, MD is a urology physician with a practice address in Rockville, Maryland, and NPI 1114030301, issued on Aug 15, 2006. Check the license (Maryland D39918, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Leonard Stuart Bloom
- Credential
- MD
- Primary taxonomy
- Urology Physician 208800000X
- License numbers
- D39918 MD
D0039918 MD
Self-reported in NPPES; status is on the state search - Practice location
- 9420 Key West Ave., Rockville, MD 20850
- Phone
- (301) 258-1919
- Enumerated
- Aug 15, 2006
- Record last updated
- Sep 6, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (301) 258-9180
- Medicaid ID
- 063461100 MD
- Entity
- Type 1 · individual
8 nearest urology physician records → All 311 in Maryland → Look up another NPI →
Also registered at 9420 Key West Ave.
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gary Friedlander, MDUrology Physician1083716195
- Robert Goldman, MDUrology Physician1780729210
- Ellen Goldmark, MDUrology Physician1720247703
- Roberto Pedraza, MDUrology Physician1053419614
- Robert Sher, MDUrology Physician1932118098
Verify Leonard Stuart Bloom in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D39918Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average urology physician in 2024
13 Medicare Part D claims, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Leonard Stuart Bloom among 311 urology physician records in Maryland
Leonard Stuart Bloom, MD is one of 311 urology physician records with a practice address in Maryland. 80% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 52% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 68% of these records are
- Record last updated2017 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Urology Physician providers in Maryland
There are 311 urology physician records in Maryland.
All 311 in Maryland → Every provider in Rockville → Urology Physician nationwide →
The 8 urology physician records with the nearest ZIP codes
- Barry Aron, MDRockville, MD 208501760495261
- Spencer Craven, MDRockville, MD 208501922426071
- Gary Friedlander, MDRockville, MD 208501083716195
- Robert Goldman, MDRockville, MD 208501780729210
- Ellen Goldmark, MDRockville, MD 208501720247703
- Michael Isaacson, MDRockville, MD 208501225262314
- Priyanka Kancherla, MDRockville, MD 208501669909669
- Roberto Pedraza, MDRockville, MD 208501053419614
Common questions
What is Leonard Stuart Bloom, MD's NPI number?
Leonard Stuart Bloom, MD's National Provider Identifier (NPI) is 1114030301, issued on Aug 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Leonard Stuart Bloom, MD located?
The NPPES record lists a practice address at 9420 Key West Ave., Rockville, MD, 20850. Phone: (301) 258-1919. Providers update this record themselves, so call before visiting.
How can I verify Leonard Stuart Bloom, MD's license?
NPPES lists Maryland license number D39918, 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 Leonard Stuart Bloom, MD prescribe under Medicare Part D?
In 2024, Leonard Stuart Bloom, MD had 13 Medicare Part D claims; the average among urology physician prescribers was 1,340. 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.