Anti-Bacterial AgentsCaliforniaDiagnosis, Differential
Dr. Ryan William Matson, MD
NPI1366718264PAC ID0648400010
- Medicare services, 2024
- 36
- Medicare patients, 2024
- 14
- Part D claims, 2024
- 567
- Publications
- 2
- Hospital affiliations
- 1
- Practice address
- 99 Montecillo Rd, San Rafael, CA 94903
- Practice phone
- Call (415) 444-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Matson'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. Ryan William Matson is an internist in San Rafael, California
Dr. Matson practices at San Rafael Medical Center in San Rafael, California, part of Kaiser Permanente.
Dr. Matson's NPI, 1366718264, was assigned on March 26, 2012. Dr. Matson graduated from UC San Diego School of Medicine in 2012. Dr. Matson's California license number on file is A126715.
NPI and contact details
- NPI
- 1366718264NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0648400010
- NPI enumeration date
- March 26, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (415) 444-2000
- 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 Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ryan William Matson practices at San Rafael Medical Center in San Rafael, California
Dr. Matson's primary practice is San Rafael Medical Center, at 99 Montecillo Rd, San Rafael, CA 94903 in Marin County. The practice phone is (415) 444-2000.
- San Rafael Medical Center99 Montecillo Rd, San Rafael, CA 94903 · Marin CountyPhone(415) 444-2000
Source: Dmand AI Affiliation Data
Dr. Ryan William Matson is affiliated with 1 site of care and 1 medical group
Dr. Matson's primary practice is San Rafael Medical Center in San Rafael, California, part of Kaiser Permanente. The medical group on file is The Permanente Medical Group, Inc.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ryan William Matson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Matson practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| San Rafael Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Ryan William Matson is one of 16,751 internists in California
Internal medicine is Dr. Matson's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Matson is board certified in internal medicine by the American Board of Internal Medicine. Dr. Matson has a license on file in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists pneumonia and respiratory infection and seizures among the conditions Dr. Matson treats.
Internists near Dr. Matson
Counts of internists 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. Ryan William Matson billed Medicare for 36 services in 2024
CMS data shows 36 Medicare services from Dr. Matson across 1 procedure code in 2024, for 14 Medicare patients. Medicare paid $2,503 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202436
Medicare patients14
Paid by Medicare$2,503
Procedure codes1
Dr. Matson's Medicare services by type, 2018 to 2024
- 2018
- 2024
- Office and hospital visits
- 2018: 1482024: 3676%
Dr. Matson compared with the California median for internists, 2024
- Dr. Matson
- California median
- Medicare services
- 36vs 36190% below
- Medicare patients
- 14vs 15191% below
- Part D claims
- 254vs 42140% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Matson'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. Matson?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Matson and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ryan William Matson treated 14 Medicare patients in 2024, average age 69
CMS counts 14 Medicare patients who saw Dr. Matson in 2024. 75% of them have high blood pressure. Their average risk score is 2.27, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Matson's median patient age at 77, with 49% women.
Medicare patients, 202414
Average age69
Average risk score2.27
Chronic conditions among Dr. Matson's Medicare patients, 2024
- High blood pressure75%
Share of Medicare patients with each condition. A patient can have several.
Dr. Matson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 77
Patient panel by sex, all payers
- Women49%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ryan William Matson wrote 567 Medicare Part D claims in 2024
In 2024, Dr. Matson wrote 567 Medicare Part D claims for 206 patients. 89% of them were for generic drugs. CMS names the drug for 254 of them, across 14 drugs with 11 or more claims each, at $4,720 in total drug cost. In 2023, CMS named 235 claims across 13 drugs.
Part D claims, 2024567
Drugs named by CMS14
Total drug cost$4,720
Part D patients206
Dr. Matson's Part D claims by kind of drug, 2024
- Generic504 claims89%
- Brand-name and other63 claims11%
Dr. Matson'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. Matson's Part D claims, 2024
- Opioids3%19 of 567 claims
- Antibiotics22%125 of 567 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: 2352024: 2548%
Drugs named by CMS: 14 in 2024, 13 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
How Dr. Ryan William Matson takes part in Medicare
Dr. Matson 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)
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Dr. Ryan William Matson has 2 publications on record
Dmand AI links 2 papers to Dr. Matson in 2014. Dr. Matson's most frequent co-authors are Gonzalo Rafael Ballon-Landa, MD and Nancy F. Crum-Cianflone, MD.
Papers2
Dr. Matson's most frequent co-authors
Recent publications by Dr. Matson
Am J Trop Med Hyg
AnophelesDNA, Ribosomal SpacerPolymerase Chain Reaction
See who Dr. Matson researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Matson works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Ryan William Matson graduated from UC San Diego School of Medicine
Dr. Matson graduated from UC San Diego School of Medicine in 2012. Dr. Matson is a member of SHM.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Ryan William Matson accepts plans from 2 insurance carriers
Dr. Matson is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Matson accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Ryan William Matson'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Ryan William Matson
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. Ryan William Matson's NPI number?
Dr. Ryan William Matson's NPI number is 1366718264. It was assigned on March 26, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Ryan William Matson?
Dr. Ryan William Matson is an internist in San Rafael, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Ryan William Matson practice?
Dr. Matson practices at 99 Montecillo Rd, San Rafael, CA 94903. Dr. Matson's primary practice is San Rafael Medical Center in San Rafael, California, part of Kaiser Permanente.
What is Dr. Ryan William Matson's office phone number?
The practice phone on file for Dr. Matson is (415) 444-2000.
What is Dr. Ryan William Matson's medical license number?
Dr. Matson's California license number on file is A126715.
Which hospitals is Dr. Ryan William Matson affiliated with?
Dr. Matson practices at San Rafael Medical Center in San Rafael, California.
What medical group is Dr. Ryan William Matson part of?
Dr. Matson is linked to The Permanente Medical Group, Inc.
Does Dr. Ryan William Matson accept Medicare?
Yes. CMS data shows Dr. Matson billed Medicare for 36 services in 2024, and Dr. Matson accepts Medicare assignment.
How many Medicare patients does Dr. Ryan William Matson see?
CMS counts 14 Medicare patients who saw Dr. Matson in 2024, with an average age of 69.
Is Dr. Ryan William Matson board certified?
Yes. Dr. Matson is board certified in internal medicine by the American Board of Internal Medicine.
Show 7 more questionsShow fewer questions
What services does Dr. Ryan William Matson bill to Medicare?
In 2024, Dr. Matson's most billed Medicare services were hospital inpatient care (99232).
Where did Dr. Ryan William Matson go to medical school?
Dr. Matson graduated from UC San Diego School of Medicine in 2012.
What drugs does Dr. Ryan William Matson prescribe most?
In 2024 Medicare Part D data, Dr. Matson's most prescribed drugs by claims were Atorvastatin Calcium, Cefuroxime and Doxycycline Monohydrate.
How long has Dr. Ryan William Matson been practicing?
Dr. Matson graduated from medical school in 2012, 14 years ago.
Does Dr. Ryan William Matson do research?
Dmand AI links 2 publications to Dr. Matson.
Who does Dr. Ryan William Matson publish with?
Dr. Matson's most frequent co-authors are Gonzalo Rafael Ballon-Landa, MD (1 shared paper) and Nancy F. Crum-Cianflone, MD (1 shared paper).
What insurance does Dr. Ryan William Matson accept?
Dr. Matson is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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