Dr. Stephen Mark Massa, MD
- Publications
- 141
- Hospital affiliations
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 4150 Clement Street, San Francisco, CA 94121
- Practice phone
- Call (415) 221-4810
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Massa'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. Stephen Mark Massa is a neurologist in San Francisco, California
Dr. Massa practices at San Francisco VA Medical Center in San Francisco, California, part of Veterans Health Administration.
Dr. Massa's NPI, 1710938584, was assigned on May 15, 2006. Dr. Massa graduated from University of Rochester Medical Center in 1984. Dr. Massa's California license number on file is G57165.
- NPI
- 1710938584NPI Registry (opens in a new tab)
- NPI enumeration date
- May 15, 2006
- NPI status
- Active
- Practice phone
- (415) 221-4810
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Stephen Mark Massa practices at San Francisco VA Medical Center in San Francisco, California
Dr. Massa's primary practice is San Francisco VA Medical Center, at 4150 Clement Street, San Francisco, CA 94121 in San Francisco County. The practice phone is (415) 221-4810.
- San Francisco VA Medical Center4150 Clement Street, San Francisco, CA 94121 · San Francisco CountyPhone(415) 221-4810
Source: Dmand AI Affiliation Data
Dr. Stephen Mark Massa is affiliated with 1 site of care
Dr. Massa's primary practice is San Francisco VA Medical Center in San Francisco, California, part of Veterans Health Administration. Dr. Massa's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Stephen Mark Massa's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Massa practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| San Francisco VA Medical Center | 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 Veterans Health Administration and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Stephen Mark Massa is one of 2,207 neurologists in California
Neurology is Dr. Massa's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Massa is board certified in neurology by the American Board of Psychiatry and Neurology. Dr. Massa has a license on file in California.
Specialties and state licenses
- Neurology, CaliforniaPrimary
Neurologists near Dr. Massa
Counts of neurologists 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. Stephen Mark Massa's patients have a median age of 61
Across all payers, Dmand AI patient panel data puts Dr. Massa's median patient age at 61, with 33% women.
Dr. Massa's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women33%
- Men67%
Source: Dmand AI Patient Panel Data
Dr. Stephen Mark Massa has 141 publications on record
Dmand AI links 141 papers to Dr. Massa, published from 2004 to 2025. 2014 was the busiest year, with 4. The most frequent topics are Pyrroles, Chemical Phenomena and Structure-Activity Relationship. Dr. Massa has published most often in Farmaco Sci. Dr. Massa's most frequent co-authors are Frank Michael Longo, MD, PhD, Raymond A. Swanson, MD and Juliet Klasing Knowles, MD, PhD.
Dr. Massa's papers by year, 2014 to 2025
Topics Dr. Massa writes about most
- Pyrroles
- Chemical Phenomena
- Structure-Activity Relationship
- Chemistry
- Antifungal Agents
- Disease Models, Animal
- HIV-1
- Magnetic Resonance Spectroscopy
Dr. Massa's most frequent co-authors
- Frank Michael Longo, MD, PhD41 shared papers
- Raymond A. Swanson, MD9 shared papers
- Juliet Klasing Knowles, MD, PhD4 shared papers
Recent publications by Dr. Massa
NPJ Biofilms Microbiomes
See who Dr. Massa researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Massa works with, so you can find a warm path to the right neurologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Stephen Mark Massa graduated from University of Rochester Medical Center
Dr. Massa graduated from University of Rochester Medical Center in 1984.
- Medical school
- Board certified in neurology
Source: Dmand AI Professional Profile Data
Sources for Dr. Stephen Mark Massa'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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 |
| 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. Stephen Mark Massa
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What is Dr. Stephen Mark Massa's NPI number?
Dr. Stephen Mark Massa's NPI number is 1710938584. It was assigned on May 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephen Mark Massa?
Dr. Stephen Mark Massa is a neurologist in San Francisco, California. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Stephen Mark Massa practice?
Dr. Massa practices at 4150 Clement Street, San Francisco, CA 94121. Dr. Massa's primary practice is San Francisco VA Medical Center in San Francisco, California, part of Veterans Health Administration.
What is Dr. Stephen Mark Massa's office phone number?
The practice phone on file for Dr. Massa is (415) 221-4810.
What is Dr. Stephen Mark Massa's medical license number?
Dr. Massa's California license number on file is G57165.
Which hospitals is Dr. Stephen Mark Massa affiliated with?
Dr. Massa practices at San Francisco VA Medical Center in San Francisco, California.
Is Dr. Stephen Mark Massa board certified?
Yes. Dr. Massa is board certified in neurology by the American Board of Psychiatry and Neurology.
Where did Dr. Stephen Mark Massa go to medical school?
Dr. Massa graduated from University of Rochester Medical Center in 1984.
How long has Dr. Stephen Mark Massa been practicing?
Dr. Massa graduated from medical school in 1984, 42 years ago.
Does Dr. Stephen Mark Massa do research?
Dmand AI links 141 publications to Dr. Massa, published from 2004 to 2025.
Who does Dr. Stephen Mark Massa publish with?
Dr. Massa's most frequent co-authors are Frank Michael Longo, MD, PhD (41 shared papers), Raymond A. Swanson, MD (9 shared papers) and Juliet Klasing Knowles, MD, PhD (4 shared papers).
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