AnxietyDigestive SystemEnterochromaffin Cells
Dr. James Robert Bayrer, MD
NPI1669601274
- Publications
- 10
- Hospital affiliations
- 1
- Industry payments
- $802
- Medical groups
- 3
- Insurance carriers
- 10
- Practice address
- 505 Parnassus Ave, Box 0296, San Francisco, CA 94143
- Practice phone
- Call (415) 353-2733
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Bayrer'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. James Robert Bayrer is a pediatrician in San Francisco, California
Dr. Bayrer practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health.
Dr. Bayrer's NPI, 1669601274, was assigned on July 6, 2009. Dr. Bayrer graduated from Cleveland Medical College, Homeopathic in 2009. Dr. Bayrer holds California license A108316.
NPI and contact details
- NPI
- 1669601274NPI Registry (opens in a new tab)
- NPI enumeration date
- July 6, 2009
- NPI status
- Active
- Practice phone
- (415) 353-2733
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. James Robert Bayrer practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California
Dr. Bayrer's primary practice is UCSF Helen Diller Medical Center at Parnassus Heights, at 505 Parnassus Ave, Box 0296, San Francisco, CA 94143 in San Francisco County. The practice phone is (415) 353-2733.
- UCSF Helen Diller Medical Center at Parnassus Heights505 Parnassus Ave, Box 0296, San Francisco, CA 94143 · San Francisco CountyPhone(415) 353-2733
Source: Dmand AI Affiliation Data
Dr. James Robert Bayrer is affiliated with 1 site of care and 3 medical groups
Dr. Bayrer's primary practice is UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health. The medical group on file is UCSF Pediatrics. Dmand AI also links Dr. Bayrer to 2 more medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. James Robert Bayrer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bayrer practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCSF Helen Diller Medical Center at Parnassus Heights | Available with a free account |
| +2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. James Robert Bayrer is one of 8,236 pediatricians in California
Pediatrics is Dr. Bayrer's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Bayrer is board certified in pediatric gastroenterology by the American Board of Pediatrics. Dr. Bayrer is licensed in California.
Specialties and state licenses
- Pediatrics, CaliforniaPrimary
Pediatricians near Dr. Bayrer
Counts of pediatricians with a Dmand AI profile, by place and practice. Each opens the list.
8,236pediatricians in California374pediatricians in San Francisco127pediatricians at UCSF Helen Diller Medical Center at Parnassus Heights
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. James Robert Bayrer's patients have a median age of 8
Across all payers, Dmand AI patient panel data puts Dr. Bayrer's median patient age at 8, with 45% women.
Dr. Bayrer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 8
Patient panel by sex, all payers
- Women45%
- Men53%
Source: Dmand AI Patient Panel Data
Dr. James Robert Bayrer has 10 publications on record
Dmand AI links 10 papers to Dr. Bayrer, published from 2004 to 2023. The most frequent topics are Crystallography, X-Ray, DNA-Binding Proteins and Drosophila melanogaster. Dr. Bayrer has published most often in J Biol Chem. Dr. Bayrer's most frequent co-authors are Wei Zhang, MD and Kevin Michael Man, MD.
Papers10
Years published2004 to 2023
Dr. Bayrer's papers by year, 2004 to 2023
Topics Dr. Bayrer writes about most
- Crystallography, X-Ray
- DNA-Binding Proteins
- Drosophila melanogaster
- Drosophila Proteins
- Sex Characteristics
- Amino Acid Sequence
- Colonic Neoplasms
- Enterochromaffin Cells
Dr. Bayrer's most frequent co-authors
- Wei Zhang, MD2 shared papers
- Kevin Michael Man, MD1 shared paper
Recent publications by Dr. Bayrer
Proc Natl Acad Sci U S A
AdipocytesAdipose Tissue, BrownAzoxymethane
Arcuate Nucleus of HypothalamusBone DensityEnergy Metabolism
Amino Acid SequenceBase SequenceCalcium Channels
Proc Natl Acad Sci U S A
Caco-2 CellsCell CycleCell Proliferation
See who Dr. Bayrer researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Bayrer works with, so you can find a warm path to the right pediatricians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. James Robert Bayrer received $802 in industry payments in 2018
CMS Open Payments shows 10 general payments to Dr. Bayrer from 1 drug or device company in 2018. Travel and lodging make up the largest share, 94% of the total. Abbvie Inc. paid the most, $802.
General payments to Dr. Bayrer by kind, 2018 to 2018
$802in total
- Travel and lodging$75694%
- Food and beverage$476%
Companies that paid Dr. Bayrer the most, 2018 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. James Robert Bayrer graduated from Cleveland Medical College, Homeopathic
Dr. Bayrer graduated from Cleveland Medical College, Homeopathic in 2009.
- Medical school
- Board certified in pediatric gastroenterology
- Board certified in pediatrics
Source: Dmand AI Professional Profile Data
Dr. James Robert Bayrer accepts plans from 10 insurance carriers
Dr. Bayrer is in network with 10 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- Blue Cross and Blue Shield of Kansas City
- +2 more carriersWith a free account
Plan types Dr. Bayrer accepts, by number of carriers
- Medicare8
- PPO7
- POS4
- EPO3
- HMO3
Source: Dmand AI Insurance Network Data
Sources for Dr. James Robert Bayrer'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 |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. James Robert Bayrer
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. James Robert Bayrer's NPI number?
Dr. James Robert Bayrer's NPI number is 1669601274. It was assigned on July 6, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. James Robert Bayrer?
Dr. James Robert Bayrer is a pediatrician in San Francisco, California. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. James Robert Bayrer practice?
Dr. Bayrer practices at 505 Parnassus Ave, Box 0296, San Francisco, CA 94143. Dr. Bayrer's primary practice is UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health. Dmand AI also links Dr. Bayrer to 2 medical groups.
What is Dr. James Robert Bayrer's office phone number?
The practice phone on file for Dr. Bayrer is (415) 353-2733.
What is Dr. James Robert Bayrer's medical license number?
Dr. Bayrer holds California license A108316.
Which hospitals is Dr. James Robert Bayrer affiliated with?
Dr. Bayrer practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California.
What medical group is Dr. James Robert Bayrer part of?
Dr. Bayrer is linked to UCSF Pediatrics. Dmand AI links Dr. Bayrer to 2 more medical groups.
Is Dr. James Robert Bayrer board certified?
Yes. Dr. Bayrer is board certified in pediatric gastroenterology by the American Board of Pediatrics.
Where did Dr. James Robert Bayrer go to medical school?
Dr. Bayrer graduated from Cleveland Medical College, Homeopathic in 2009.
Has Dr. James Robert Bayrer received payments from drug or device companies?
CMS Open Payments shows $802 in general payments to Dr. Bayrer from 1 company from 2018 to 2018. The largest total came from Abbvie Inc.
Show 4 more questionsShow fewer questions
How long has Dr. James Robert Bayrer been practicing?
Dr. Bayrer graduated from medical school in 2009, 17 years ago.
Does Dr. James Robert Bayrer do research?
Dmand AI links 10 publications to Dr. Bayrer, published from 2004 to 2023.
Who does Dr. James Robert Bayrer publish with?
Dr. Bayrer's most frequent co-authors are Wei Zhang, MD (2 shared papers) and Kevin Michael Man, MD (1 shared paper).
What insurance does Dr. James Robert Bayrer accept?
Dr. Bayrer is in network with 10 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
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