William Matthew Martin, PA
- Medicare services, 2024
- 112
- Medicare patients, 2024
- 111
- Part D claims, 2024
- 414
- Hospital affiliations
- 2
- Industry payments
- $147
- Practice address
- 344 S Hauser Blvd, Los Angeles, CA 90036
- Practice phone
- Call (716) 845-2300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Roswell Park Cancer Institute
Los Angeles, California
Find William Martin'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.
William Matthew Martin is a physician assistant in Los Angeles, California
William Martin practices at Roswell Park Cancer Institute in Los Angeles, California.
William Martin's NPI, 1093064230, was assigned on September 4, 2012. William Martin holds New York license 015802.
- NPI
- 1093064230NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1658521307
- NPI enumeration date
- September 4, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (716) 845-2300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
William Matthew Martin practices at Roswell Park Cancer Institute in Los Angeles, California
William Martin's primary practice is Roswell Park Cancer Institute, at 344 S Hauser Blvd, Los Angeles, CA 90036 in Los Angeles County. The practice phone is (716) 845-2300.
- Roswell Park Cancer Institute344 S Hauser Blvd, Los Angeles, CA 90036 · Los Angeles CountyPhone(716) 845-2300
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
William Matthew Martin is affiliated with 3 sites of care and 1 medical group
William Martin's primary practice is Roswell Park Cancer Institute in Los Angeles, California. William Martin is also affiliated with Roswell Park Comprehensive Cancer Center. The medical group on file is Roswell Park Comprehensive Cancer Center. Dmand AI also links William Martin to 1 more hospital, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at William Matthew Martin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where William Martin practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Roswell Park Cancer Institute | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
William Matthew Martin is one of 11,482 physician assistants in California
Physician assistant is William Martin's primary specialty in the NPI Registry, under taxonomy code 363A00000X. William Martin is board certified in surgery by the American Board of Surgery. William Martin is licensed in New York.
Specialties and state licenses
- Physician assistant, New YorkPrimary
Clinical focus
Dmand AI lists enlarged prostate among the conditions William Martin treats.
Physician assistants near William Martin
Counts of physician assistants 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
William Matthew Martin billed Medicare for 112 services in 2024
CMS data shows 112 Medicare services from William Martin across 3 procedure codes in 2024, all of them office visits, for 111 Medicare patients. Medicare paid $7,551 for them. Every service was in a facility, such as a hospital, rather than an office.
William Martin compared with the California median for physician assistants, 2024
- William Martin
- California median
- Medicare services
- 112vs 20445% below
- Medicare patients
- 111vs 1056% above
- Part D claims
- 326vs 24334% above
Medians across 7,065 physician assistants in California with Dmand AI profiles that report each measure.
William Martin'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 William Martin?
Medicare shows one payer. Book a meeting to get commercial claims data for William Martin and other physician assistants in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
William Matthew Martin treated 111 Medicare patients in 2024, average age 73
CMS counts 111 Medicare patients who saw William Martin in 2024. The largest group is 65 to 74, with 55 patients. 75% of them have cancer, and 75% have high blood pressure. 14% are also on Medicaid. Their average risk score is 1.76, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts William Martin's median patient age at 69, with 14% women.
William Martin's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
William Martin's Medicare patients by sex, 2024
- Women1816%
- Men9384%
Chronic conditions among William Martin's Medicare patients, 2024
- Cancer75%
- High blood pressure75%
- High cholesterol75%
- Arthritis43%
- Ischemic heart disease38%
- Diabetes32%
- Chronic kidney disease31%
- Mood disorders27%
Share of Medicare patients with each condition. A patient can have several.
William Martin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women14%
- Men84%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
William Matthew Martin wrote 414 Medicare Part D claims in 2024
In 2024, William Martin wrote 414 Medicare Part D claims for 172 patients. 84% of them were for generic drugs. CMS names the drug for 326 of them, across 10 drugs with 11 or more claims each, at $24,772 in total drug cost.
William Martin's Part D claims by kind of drug, 2024
- Generic349 claims84%
- Brand-name and other65 claims16%
William Martin'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 William Martin's Part D claims, 2024
- Antibiotics18%73 of 414 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
How William Matthew Martin takes part in Medicare
William Martin accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
William Matthew Martin received $147 in industry payments in 2025
CMS Open Payments shows 1 general payment to William Martin from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Edap Technomed Inc paid the most, $147.
Companies that paid William Martin the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
William Matthew Martin is board certified in surgery
William Martin is a member of AAPA.
- Board certified in surgery
- Board certified in vascular surgery
- Board certified in certified physician assistant
Source: Dmand AI Professional Profile Data
Sources for William Matthew Martin'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 DataDmand AI Org Hierarchy 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) |
| 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 William Matthew Martin
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is William Matthew Martin's NPI number?
William Matthew Martin's NPI number is 1093064230. It was assigned on September 4, 2012, and it is active in the NPI Registry.
What does William Matthew Martin specialize in?
William Matthew Martin is a physician assistant in Los Angeles, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does William Matthew Martin practice?
William Martin practices at 344 S Hauser Blvd, Los Angeles, CA 90036. William Martin's primary practice is Roswell Park Cancer Institute in Los Angeles, California. Dmand AI also links William Martin to 1 hospital.
What is William Matthew Martin's office phone number?
The practice phone on file for William Martin is (716) 845-2300.
What is William Matthew Martin's medical license number?
William Martin holds New York license 015802.
Which hospitals is William Matthew Martin affiliated with?
William Martin is affiliated with Roswell Park Comprehensive Cancer Center. Dmand AI links William Martin to 1 more hospital.
What medical group is William Matthew Martin part of?
William Martin is linked to Roswell Park Comprehensive Cancer Center.
Does William Matthew Martin accept Medicare?
Yes. CMS data shows William Martin billed Medicare for 112 services in 2024, and William Martin accepts Medicare assignment.
How many Medicare patients does William Matthew Martin see?
CMS counts 111 Medicare patients who saw William Martin in 2024, with an average age of 73.
Is William Matthew Martin board certified?
Yes. William Martin is board certified in surgery by the American Board of Surgery.
Show 4 more questionsShow fewer questions
What services does William Matthew Martin bill to Medicare?
In 2024, William Martin's most billed Medicare services were office visit, established patient (99215), office visit, established patient (99213) and office visit, established patient (99214).
What drugs does William Matthew Martin prescribe most?
In 2024 Medicare Part D data, William Martin's most prescribed drugs by claims were Tamsulosin HCl, Finasteride and Myrbetriq.
Has William Matthew Martin received payments from drug or device companies?
CMS Open Payments shows $147 in general payments to William Martin from 1 company from 2025 to 2025. The largest total came from Edap Technomed Inc.
How long has William Matthew Martin been practicing?
William Martin graduated from medical school in 2012, 14 years ago.
Selling to physician assistant practices?
See physician assistants in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card