Dr. Gregory John Martin, MD
- Publications
- 17
- Industry payments
- $16
- Affiliated sites
- 1
- State licenses
- 2
- Year NPI issued
- 2006
- Practice address
- 45 Castro St Lbby, San Francisco, CA 94114
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
California Pacific Medical Ctr-Davies Campus Hosp - HOPD (45 Castro St Lbby)
Acute Care Hospital outpatient department · San Francisco, California
Find Dr. 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.
Dr. Gregory John Martin is an infectious disease specialist in San Francisco, California
Dr. Martin practices at California Pacific Medical Ctr-Davies Campus Hosp - HOPD (45 Castro St Lbby) in San Francisco, California.
Dr. Martin's NPI, 1720055924, was assigned on March 7, 2006. Dr. Martin graduated from Georgetown University School Of Medicine in 1986. Dr. Martin's California license number on file is G64883.
- NPI
- 1720055924NPI Registry (opens in a new tab)
- NPI enumeration date
- March 7, 2006
- NPI status
- Active
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Gregory John Martin practices at California Pacific Medical Ctr-Davies Campus Hosp - HOPD (45 Castro St Lbby) in San Francisco, California
Dr. Martin's primary practice is California Pacific Medical Ctr-Davies Campus Hosp - HOPD (45 Castro St Lbby), at 45 Castro St Lbby, San Francisco, CA 94114.
- California Pacific Medical Ctr-Davies Campus Hosp - HOPD (45 Castro St Lbby)45 Castro St Lbby, San Francisco, CA 94114
Source: Dmand AI Affiliation Data
Dr. Gregory John Martin is affiliated with 1 site of care
Dr. Martin's primary practice is California Pacific Medical Ctr-Davies Campus Hosp - HOPD (45 Castro St Lbby) in San Francisco, California.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Gregory John Martin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Martin practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| California Pacific Medical Ctr-Davies Campus Hosp - HOPD (45 Castro St Lbby) | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregory John Martin is one of 1,054 infectious disease specialists in California
Infectious disease is Dr. Martin's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Martin is board certified in infectious disease by the American Board of Internal Medicine. Dmand AI has Dr. Martin's licenses on file in 2 states: California and District of Columbia.
Specialties and state licenses
- Infectious disease, CaliforniaPrimary
- District of Columbia license
Infectious disease specialists near Dr. Martin
Counts of infectious disease specialists 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. Gregory John Martin's patients have a median age of 63
Across all payers, Dmand AI patient panel data puts Dr. Martin's median patient age at 63, with 56% women.
Dr. 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 63
Patient panel by sex, all payers
- Women56%
- Men40%
Source: Dmand AI Patient Panel Data
Dr. Gregory John Martin has 17 publications on record
Dmand AI links 17 papers to Dr. Martin, published from 2011 to 2016. The most frequent topics are Disease Outbreaks, HIV Infections and Military Personnel. Dr. Martin has published most often in Clin Infect Dis. Dr. Martin's most frequent co-authors are Mark Simonds Riddle, MD, Timothy H. Burgess, MD, MPH and Andy Chern, MD, MPH.
Topics Dr. Martin writes about most
- Disease Outbreaks
- HIV Infections
- Military Personnel
- Anti-HIV Agents
- Drug Therapy, Combination
- Hydrogen-Ion Concentration
- Malaria
- Malaria, Falciparum
Dr. Martin's most frequent co-authors
- Mark Simonds Riddle, MD2 shared papers
- Timothy H. Burgess, MD, MPH1 shared paper
- Andy Chern, MD, MPH1 shared paper
Recent publications by Dr. Martin
See who Dr. Martin researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Martin works with, so you can find a warm path to the right infectious disease specialists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Gregory John Martin received $16 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Martin from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Galderma Laboratories, L.P. paid the most, $16.
Companies that paid Dr. 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
Dr. Gregory John Martin has 20 awards and honors on record
Dmand AI lists 20 awards for Dr. Martin, most recently Legion of Merit in 2012.
Awards and honors for Dr. Martin
- 2012
- Legion of Merit
- 2011
- Defense Meritorious Service Medal awarded
- 2007
- Meritorious Service Medal awarded
- 2005
- Awarded Fellowship in the Infectious Diseases Society of America
- 2002
- Brachman Award for excellence in teaching epidemiology
- Legion of Merit awarded
Source: Dmand AI Professional Profile Data
Dr. Gregory John Martin graduated from Georgetown University School Of Medicine
Dr. Martin graduated from Georgetown University School Of Medicine in 1986. Dr. Martin is a member of AOA, ACP, American Society Tropical Medicine and Hygiene, Armed Forces Infectious Diseases Society (AFIDS) and IDSA.
- Medical school
- Board certified in infectious disease
Source: Dmand AI Professional Profile Data
Sources for Dr. Gregory John 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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation 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 |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Gregory John 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 Dr. Gregory John Martin's NPI number?
Dr. Gregory John Martin's NPI number is 1720055924. It was assigned on March 7, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory John Martin?
Dr. Gregory John Martin is an infectious disease specialist in San Francisco, California. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).
Where does Dr. Gregory John Martin practice?
Dr. Martin practices at 45 Castro St Lbby, San Francisco, CA 94114. Dr. Martin's primary practice is California Pacific Medical Ctr-Davies Campus Hosp - HOPD (45 Castro St Lbby) in San Francisco, California.
What is Dr. Gregory John Martin's medical license number?
Dr. Martin's California license number on file is G64883, one of the licenses on file in 2 states.
Which states has Dr. Gregory John Martin been licensed in?
Dmand AI has state licenses on file for Dr. Martin in California (1989 to 2024) and District of Columbia (2023 to 2026).
Is Dr. Gregory John Martin board certified?
Yes. Dr. Martin is board certified in infectious disease by the American Board of Internal Medicine.
Where did Dr. Gregory John Martin go to medical school?
Dr. Martin graduated from Georgetown University School Of Medicine in 1986.
Has Dr. Gregory John Martin received payments from drug or device companies?
CMS Open Payments shows $16 in general payments to Dr. Martin from 1 company from 2025 to 2025. The largest total came from Galderma Laboratories, L.P.
How long has Dr. Gregory John Martin been practicing?
Dr. Martin graduated from medical school in 1986, 40 years ago.
Does Dr. Gregory John Martin do research?
Dmand AI links 17 publications to Dr. Martin, published from 2011 to 2016.
Who does Dr. Gregory John Martin publish with?
Dr. Martin's most frequent co-authors are Mark Simonds Riddle, MD (2 shared papers), Timothy H. Burgess, MD, MPH (1 shared paper) and Andy Chern, MD, MPH (1 shared paper).
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