Dr. Gary S. Friedlander, MD
- Medicare services, 2024
- 6,878
- Medicare patients, 2024
- 1,103
- Part D claims, 2024
- 2,885
- Hospital affiliations
- 1
- Industry payments
- $19,351
- Practice address
- 9420 Key West Ave, Rockville, MD 20850
- Practice phone
- Call (301) 598-9717
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Chesapeake Urology Associates
Rockville, Maryland
Find Dr. Friedlander's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Gary S. Friedlander is a urologist in Rockville, Maryland
Dr. Friedlander practices at Chesapeake Urology Associates in Rockville, Maryland.
Dr. Friedlander's NPI, 1083716195, was assigned on September 1, 2006. Dr. Friedlander graduated from Georgetown University School of Medicine in 1987. Dr. Friedlander holds Maryland license D0039383.
- NPI
- 1083716195NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4789763616
- NPI enumeration date
- September 1, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (301) 598-9717
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gary S. Friedlander practices at Chesapeake Urology Associates in Rockville, Maryland
Dr. Friedlander's primary practice is Chesapeake Urology Associates, at 9420 Key West Ave, Rockville, MD 20850 in Montgomery County. The practice phone is (301) 598-9717.
- Chesapeake Urology Associates9420 Key West Ave, Rockville, MD 20850 · Montgomery CountyPhone(301) 598-9717
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Gary S. Friedlander is affiliated with 3 sites of care and 1 medical group
Dr. Friedlander's primary practice is Chesapeake Urology Associates in Rockville, Maryland. Dr. Friedlander is also affiliated with Frederick Health Hospital. The medical group on file is Chesapeake Urology Associates. Dmand AI also links Dr. Friedlander to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Gary S. Friedlander's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Friedlander practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Chesapeake Urology Associates | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gary S. Friedlander is one of 268 urologists in Maryland
Urology is Dr. Friedlander's primary specialty in the NPI Registry, under taxonomy code 208800000X. Dr. Friedlander is licensed in Maryland.
Specialties and state licenses
- Urology, MarylandPrimary
Urologists near Dr. Friedlander
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. Gary S. Friedlander billed Medicare for 6,878 services in 2024
CMS data shows 6,878 Medicare services from Dr. Friedlander across 31 procedure codes in 2024, for 1,103 Medicare patients. Medicare paid $312,256 for them.
Dr. Friedlander's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,7382024: 3,19484%
- Other services
- 2023: 02024: 1,154
- Surgery
- 2023: 1,1032024: 1,0693%
- Lab and pathology
- 2023: 1,1552024: 1,02611%
- Imaging
- 2023: 4172024: 4354%
Where Dr. Friedlander's Medicare services took place, 2024
- In an office6,31892%
- In a facility5608%
Dr. Friedlander compared with the Maryland median for urologists, 2024
- Dr. Friedlander
- Maryland median
- Medicare services
- 6,878vs 2,5222.7 times
- Medicare patients
- 1,103vs 69060% above
- Part D claims
- 2,778vs 6004.6 times
Medians across 265 urologists in Maryland with Dmand AI profiles that report each measure.
Dr. Friedlander's most billed Medicare procedure codes, 2024
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. Friedlander?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Friedlander and other urologists in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gary S. Friedlander treated 1,103 Medicare patients in 2024, average age 77
CMS counts 1,103 Medicare patients who saw Dr. Friedlander in 2024. The largest group is 75 to 84, with 487 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 5% are also on Medicaid. Their average risk score is 1.05, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Friedlander's median patient age at 71, with 9% women.
Dr. Friedlander's Medicare patients by age, 2024
Dr. Friedlander's Medicare patients by sex, 2024
- Women999%
- Men1,00491%
Chronic conditions among Dr. Friedlander's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis38%
- Ischemic heart disease36%
- Diabetes29%
- Cancer26%
- Chronic kidney disease24%
- Atrial fibrillation20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Friedlander'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
- Women9%
- Men89%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gary S. Friedlander wrote 2,885 Medicare Part D claims in 2024
In 2024, Dr. Friedlander wrote 2,885 Medicare Part D claims for 737 patients. 91% of them were for generic drugs. CMS names the drug for 2,778 of them, across 28 drugs with 11 or more claims each, at $315,309 in total drug cost. In 2023, CMS named 2,486 claims across 25 drugs.
Dr. Friedlander's Part D claims by kind of drug, 2024
- Generic2,633 claims91%
- Brand-name252 claims9%
Dr. Friedlander's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Friedlander's Part D claims, 2024
- Opioids1%23 of 2,885 claims
- Antibiotics5%153 of 2,885 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,4862024: 2,77812%
Drugs named by CMS: 28 in 2024, 25 in 2023.
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
Dr. Gary S. Friedlander ranks in the 81st percentile for prostate resection in Medicare
Dr. Friedlander accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Friedlander as offering telehealth. CMS counts 20 procedures of prostate resection by Dr. Friedlander, more than 81% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Friedlander ranks in Medicare procedure volume
- Prostate resection
- 81st percentile20 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Gary S. Friedlander received $19,351 in industry payments from 2016 to 2025
CMS Open Payments shows 535 general payments to Dr. Friedlander from 53 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 61% of the total. Astellas Pharma US Inc paid the most, $6,072.
General payments to Dr. Friedlander by program year, 2016 to 2025
General payments to Dr. Friedlander by kind, 2016 to 2025
- Food and beverage$11,79961%
- Speaker and faculty fees$4,20022%
- Travel and lodging$2,36412%
- Education$9885%
Companies that paid Dr. Friedlander 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. Gary S. Friedlander graduated from Georgetown University School of Medicine
Dr. Friedlander graduated from Georgetown University School of Medicine in 1987.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gary S. Friedlander'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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. Gary S. Friedlander
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Gary S. Friedlander's NPI number?
Dr. Gary S. Friedlander's NPI number is 1083716195. It was assigned on September 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gary S. Friedlander?
Dr. Gary S. Friedlander is a urologist in Rockville, Maryland. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).
Where does Dr. Gary S. Friedlander practice?
Dr. Friedlander practices at 9420 Key West Ave, Rockville, MD 20850. Dr. Friedlander's primary practice is Chesapeake Urology Associates in Rockville, Maryland. Dmand AI also links Dr. Friedlander to 1 group practice or clinic.
What is Dr. Gary S. Friedlander's office phone number?
The practice phone on file for Dr. Friedlander is (301) 598-9717.
What is Dr. Gary S. Friedlander's medical license number?
Dr. Friedlander holds Maryland license D0039383.
Which hospitals is Dr. Gary S. Friedlander affiliated with?
Dr. Friedlander is affiliated with Frederick Health Hospital.
What medical group is Dr. Gary S. Friedlander part of?
Dr. Friedlander is linked to Chesapeake Urology Associates.
Does Dr. Gary S. Friedlander accept Medicare?
Yes. CMS data shows Dr. Friedlander billed Medicare for 6,878 services in 2024, and Dr. Friedlander accepts Medicare assignment.
Does Dr. Gary S. Friedlander offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Friedlander as offering telehealth services.
How many Medicare patients does Dr. Gary S. Friedlander see?
CMS counts 1,103 Medicare patients who saw Dr. Friedlander in 2024, with an average age of 77.
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What services does Dr. Gary S. Friedlander bill to Medicare?
In 2024, Dr. Friedlander's most billed Medicare services were medicare service (G2211), lab and pathology test (81003) and care management and other visits (99426).
Where did Dr. Gary S. Friedlander go to medical school?
Dr. Friedlander graduated from Georgetown University School of Medicine in 1987.
What drugs does Dr. Gary S. Friedlander prescribe most?
In 2024 Medicare Part D data, Dr. Friedlander's most prescribed drugs by claims were Tamsulosin HCl, Finasteride and Alfuzosin HCl ER.
Has Dr. Gary S. Friedlander received payments from drug or device companies?
CMS Open Payments shows $19,351 in general payments to Dr. Friedlander from 53 companies from 2016 to 2025. The largest total came from Astellas Pharma US Inc.
How long has Dr. Gary S. Friedlander been practicing?
Dr. Friedlander graduated from medical school in 1987, 39 years ago.
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