Dr. Leonard Stuart Bloom, MD
- Medicare services, 2021
- 2,645
- Part D claims, 2024
- 13
- Industry payments
- $1,690
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 9420 Key W Ave Suite 420 Suite 420, Rockville, MD 20850-6509
- Practice phone
- Call (301) 258-1919
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Chesapeake Urology Associates - Rockville
Surgical practice · Rockville, Maryland
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Dr. Leonard Stuart Bloom is a urologist in Hamilton, Ohio
Dr. Bloom practices at Chesapeake Urology Associates - Rockville in Rockville, Maryland.
Dr. Bloom's NPI, 1114030301, was assigned on August 15, 2006. Dr. Bloom graduated from University of Maryland School of Medicine in 1984. Dr. Bloom holds Maryland license D39918.
- NPI
- 1114030301NPI Registry (opens in a new tab)
- NPI enumeration date
- August 15, 2006
- NPI status
- Active
- Practice phone
- (301) 258-1919
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 68
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Leonard Stuart Bloom practices in Rockville and Hamilton
Dr. Bloom's primary practice is Chesapeake Urology Associates - Rockville, at 9420 Key W Ave Suite 420 Suite 420, Rockville, MD 20850-6509. The practice phone is (301) 258-1919. The NPI Registry lists Dr. Bloom's practice address as 630 Eaton Ave, Hamilton, OH 45013.
- Chesapeake Urology Associates - RockvillePrimary9420 Key W Ave Suite 420 Suite 420, Rockville, MD 20850-6509Phone(301) 258-1919
- NPI Registry address630 Eaton Ave, Hamilton, OH 45013 · Butler CountyPhone(301) 258-1919
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Leonard Stuart Bloom is affiliated with 1 site of care and 1 medical group
Dr. Bloom's primary practice is Chesapeake Urology Associates - Rockville in Rockville, Maryland. The medical group on file is Chesapeake Urology Associates.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Leonard Stuart Bloom's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bloom practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Chesapeake Urology Associates - Rockville | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Leonard Stuart Bloom is one of 490 urologists in Ohio
Urology is Dr. Bloom's primary specialty in the NPI Registry, under taxonomy code 208800000X. Dr. Bloom is licensed in Maryland.
Specialties and state licenses
- Urology, MarylandPrimary
Urologists near Dr. Bloom
Counts of urologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Leonard Stuart Bloom billed Medicare for 2,645 services in 2021
CMS data shows 2,645 Medicare services from Dr. Bloom across 20 procedure codes in 2021. Medicare paid $124,222 for them.
Dr. Bloom's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 1,3572021: 88035%
- Lab and pathology
- 2020: 1,1822021: 78334%
- Surgery
- 2020: 8182021: 62923%
- Imaging
- 2020: 4002021: 22045%
- Drugs given in the office
- 2020: 6,2472021: 10398%
- Tests and treatments
- 2020: 1292021: 3077%
Where Dr. Bloom's Medicare services took place, 2021
- In an office2,43092%
- In a facility2158%
Dr. Bloom compared with the Ohio median for urologists, 2021
- Dr. Bloom
- Ohio median
- Medicare services
- 2,645vs 7983.3 times
- Part D claims
- 144vs 48971% below
Medians across 490 urologists in Ohio with Dmand AI profiles that report each measure.
Dr. Bloom's most billed Medicare procedure codes, 2021
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Bloom?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Bloom and other urologists in Ohio.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Leonard Stuart Bloom's patients have a median age of 71
Across all payers, Dmand AI patient panel data puts Dr. Bloom's median patient age at 71, with 14% women.
Dr. Bloom's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women14%
- Men83%
Source: Dmand AI Patient Panel Data
Dr. Leonard Stuart Bloom wrote 13 Medicare Part D claims in 2024
In 2024, Dr. Bloom wrote 13 Medicare Part D claims. 100% of them were for generic drugs. They cover 4 drugs, with $4,886 in total drug cost. In 2021, CMS named 1,463 claims across 16 drugs.
Dr. Bloom's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 1,4632022: 14490%
Drugs named by CMS: 4 in 2022, 16 in 2021.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Leonard Stuart Bloom received $1,690 in industry payments from 2016 to 2025
CMS Open Payments shows 62 general payments to Dr. Bloom from 26 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 93% of the total. Astellas Pharma US Inc paid the most, $291.
General payments to Dr. Bloom by program year, 2016 to 2025
General payments to Dr. Bloom by kind, 2016 to 2025
- Food and beverage$1,56593%
- Education$1257%
Companies that paid Dr. Bloom the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Leonard Stuart Bloom graduated from University of Maryland School of Medicine
Dr. Bloom graduated from University of Maryland School of Medicine in 1984.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Leonard Stuart Bloom's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Leonard Stuart Bloom
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What is Dr. Leonard Stuart Bloom's NPI number?
Dr. Leonard Stuart Bloom's NPI number is 1114030301. It was assigned on August 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Leonard Stuart Bloom?
Dr. Leonard Stuart Bloom is a urologist in Hamilton, Ohio. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).
Where does Dr. Leonard Stuart Bloom practice?
Dr. Bloom practices at 9420 Key W Ave Suite 420 Suite 420, Rockville, MD 20850-6509. Dr. Bloom also practices at 630 Eaton Ave, Hamilton, OH 45013. Dr. Bloom's primary practice is Chesapeake Urology Associates - Rockville in Rockville, Maryland.
What is Dr. Leonard Stuart Bloom's office phone number?
The practice phone on file for Dr. Bloom is (301) 258-1919.
What is Dr. Leonard Stuart Bloom's medical license number?
Dr. Bloom holds Maryland license D39918.
What medical group is Dr. Leonard Stuart Bloom part of?
Dr. Bloom is linked to Chesapeake Urology Associates.
Does Dr. Leonard Stuart Bloom accept Medicare?
Yes. CMS data shows Dr. Bloom billed Medicare for 2,645 services in 2021.
What services does Dr. Leonard Stuart Bloom bill to Medicare?
In 2021, Dr. Bloom's most billed Medicare services were lab and pathology test (81003), office visit, established patient (99213) and office visit, established patient (99214).
Where did Dr. Leonard Stuart Bloom go to medical school?
Dr. Bloom graduated from University of Maryland School of Medicine in 1984.
What drugs does Dr. Leonard Stuart Bloom prescribe most?
In 2022 Medicare Part D data, Dr. Bloom's most prescribed drugs by claims were Tamsulosin HCl, Alfuzosin HCl ER and Finasteride.
Has Dr. Leonard Stuart Bloom received payments from drug or device companies?
CMS Open Payments shows $1,690 in general payments to Dr. Bloom from 26 companies from 2016 to 2025. The largest total came from Astellas Pharma US Inc.
How long has Dr. Leonard Stuart Bloom been practicing?
Dr. Bloom graduated from medical school in 1984, 42 years ago.
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