Dr. Mark L. Weissman, MD
- Medicare services, 2018
- 446
- Part D claims, 2018
- 237
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 1500 Duarte Rd, Duarte, CA 91010
- Practice phone
- Call (800) 826-4673
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
City of Hope - Main Campus (Duarte)
Duarte, California
Find Dr. Weissman'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. Mark L. Weissman is a nephrologist in Duarte, California
Dr. Weissman practices at City of Hope - Main Campus (Duarte) in Duarte, California.
Dr. Weissman's NPI, 1871654384, was assigned on December 12, 2006. Dr. Weissman holds California license G55308.
- NPI
- 1871654384NPI Registry (opens in a new tab)
- NPI enumeration date
- December 12, 2006
- NPI status
- Active
- Practice phone
- (800) 826-4673
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Mark L. Weissman practices at City of Hope - Main Campus (Duarte) in Duarte, California
Dr. Weissman's primary practice is City of Hope - Main Campus (Duarte), at 1500 Duarte Rd, Duarte, CA 91010 in Los Angeles County. The practice phone is (800) 826-4673.
- City of Hope - Main Campus (Duarte)1500 Duarte Rd, Duarte, CA 91010 · Los Angeles CountyPhone(800) 826-4673
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mark L. Weissman is affiliated with 2 sites of care and 1 medical group
Dr. Weissman's primary practice is City of Hope - Main Campus (Duarte) in Duarte, California. The medical group on file is Burbank Foot Care Center. Dmand AI also links Dr. Weissman 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. Mark L. Weissman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Weissman practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| City of Hope - Main Campus (Duarte) | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark L. Weissman is one of 1,401 nephrologists in California
Nephrology is Dr. Weissman's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Weissman is licensed in California.
Specialties and state licenses
- Nephrology, CaliforniaPrimary
Nephrologists near Dr. Weissman
Counts of nephrologists 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. Mark L. Weissman billed Medicare for 446 services in 2018
CMS data shows 446 Medicare services from Dr. Weissman across 7 procedure codes in 2018. Medicare paid $20,752 for them. Every service was in an office.
Dr. Weissman's Medicare services by type, 2017 to 2018
- 2017
- 2018
- Office and hospital visits
- 2017: 8962018: 29168%
- Surgery
- 2017: 2862018: 8969%
- Other services
- 2017: 1922018: 3084%
- Tests and treatments
- 2017: 2192018: 2489%
- Lab and pathology
- 2017: 1062018: 1289%
Dr. Weissman compared with the California median for nephrologists, 2018
- Dr. Weissman
- California median
- Medicare services
- 446vs 1,08459% below
- Part D claims
- 237vs 95575% below
Medians across 1,355 nephrologists in California with Dmand AI profiles that report each measure.
Dr. Weissman's most billed Medicare procedure codes, 2018
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Weissman and other nephrologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark L. Weissman's patients have a median age of 67
Across all payers, Dmand AI patient panel data puts Dr. Weissman's median patient age at 67, with 39% women.
Dr. Weissman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women39%
- Men61%
Source: Dmand AI Patient Panel Data
Dr. Mark L. Weissman wrote 237 Medicare Part D claims in 2018
In 2018, Dr. Weissman wrote 237 Medicare Part D claims. They cover 10 drugs, with $3,672 in total drug cost. In 2017, CMS named 49 claims across 3 drugs.
Dr. Weissman's most prescribed drugs by claims, 2018
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, 2017 to 2018
- 2017
- 2018
- Claims for drugs CMS names
- 2017: 492018: 237384%
Drugs named by CMS: 10 in 2018, 3 in 2017.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Sources for Dr. Mark L. Weissman'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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| 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. Mark L. Weissman
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. Mark L. Weissman's NPI number?
Dr. Mark L. Weissman's NPI number is 1871654384. It was assigned on December 12, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark L. Weissman?
Dr. Mark L. Weissman is a nephrologist in Duarte, California. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Mark L. Weissman practice?
Dr. Weissman practices at 1500 Duarte Rd, Duarte, CA 91010. Dr. Weissman's primary practice is City of Hope - Main Campus (Duarte) in Duarte, California. Dmand AI also links Dr. Weissman to 1 group practice or clinic.
What is Dr. Mark L. Weissman's office phone number?
The practice phone on file for Dr. Weissman is (800) 826-4673.
What is Dr. Mark L. Weissman's medical license number?
Dr. Weissman holds California license G55308.
What medical group is Dr. Mark L. Weissman part of?
Dr. Weissman is linked to Burbank Foot Care Center.
Does Dr. Mark L. Weissman accept Medicare?
Yes. CMS data shows Dr. Weissman billed Medicare for 446 services in 2018.
What services does Dr. Mark L. Weissman bill to Medicare?
In 2018, Dr. Weissman's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and surgery: heart and blood vessels (36415).
What drugs does Dr. Mark L. Weissman prescribe most?
In 2018 Medicare Part D data, Dr. Weissman's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Metformin HCl ER.
How long has Dr. Mark L. Weissman been practicing?
Dr. Weissman's NPI was assigned in 2006.
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