Dr. John Connor Barnhart, MD
- Part D claims, 2024
- 300
- Industry payments
- $605
- Affiliated sites
- 2
- Medical group
- 1
- Insurance carriers
- 1
- Practice address
- 2238 Geary Blvd, San Francisco, CA 94115
- Practice phone
- Call (415) 833-3700
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
San Francisco Medical Center - Mammography
Mammography / Breast Imaging Center · San Francisco, California
Find Dr. Barnhart'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. John Connor Barnhart is a psychiatrist in San Francisco, California
Dr. Barnhart practices at San Francisco Medical Center - Mammography in San Francisco, California.
Dr. Barnhart's NPI, 1154880144, was assigned on March 18, 2019. Dr. Barnhart graduated from Perelman School of Medicine - Philadelphia in 2019. Dr. Barnhart holds California license A180630.
- NPI
- 1154880144NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1951712082
- NPI enumeration date
- March 18, 2019
- NPI status
- Active
- Offers telehealth
- Yes
- Practice phone
- (415) 833-3700
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Connor Barnhart practices at San Francisco Medical Center - Mammography in San Francisco, California
Dr. Barnhart's primary practice is San Francisco Medical Center - Mammography, at 2238 Geary Blvd, San Francisco, CA 94115. The practice phone is (415) 833-3700.
- San Francisco Medical Center - Mammography2238 Geary Blvd, San Francisco, CA 94115Phone(415) 833-3700
Source: Dmand AI Affiliation Data
Dr. John Connor Barnhart is affiliated with 2 sites of care and 1 medical group
Dr. Barnhart's primary practice is San Francisco Medical Center - Mammography in San Francisco, California. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Barnhart to 1 more group practice or clinic, named with a free account. Dr. Barnhart's employer is on file too: a breast imaging center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Connor Barnhart's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Barnhart practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| San Francisco Medical Center - Mammography | Available with a free account |
| +1 more affiliated site | 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.
Dr. John Connor Barnhart is one of 6,803 psychiatrists in California
Psychiatry is Dr. Barnhart's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Barnhart is board certified in psychiatry by the American Board of Psychiatry and Neurology. Dr. Barnhart is licensed in California.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
Clinical focus
Dmand AI lists bipolar disorder and insomnia among the conditions Dr. Barnhart treats.
Psychiatrists near Dr. Barnhart
Counts of psychiatrists 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. John Connor Barnhart's patients have a median age of 43
Across all payers, Dmand AI patient panel data puts Dr. Barnhart's median patient age at 43, with 46% women.
Dr. Barnhart's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 43
Patient panel by sex, all payers
- Women46%
- Men51%
Source: Dmand AI Patient Panel Data
Dr. John Connor Barnhart wrote 300 Medicare Part D claims in 2024
In 2024, Dr. Barnhart wrote 300 Medicare Part D claims for 40 patients. 94% of them were for generic drugs. CMS names the drug for 164 of them, across 9 drugs with 11 or more claims each, at $2,538 in total drug cost. In 2023, CMS named 111 claims across 7 drugs.
Dr. Barnhart's Part D claims by kind of drug, 2024
- Generic281 claims94%
- Brand-name19 claims6%
Dr. Barnhart'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. Barnhart's Part D claims, 2024
- Antipsychotics, patients 65 and over16%48 of 300 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: 1112024: 16448%
Drugs named by CMS: 9 in 2024, 7 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
Dr. John Connor Barnhart offers telehealth to Medicare patients
CMS lists Dr. Barnhart as offering telehealth.
- Offers telehealth
- 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.
Dr. John Connor Barnhart received $605 in industry payments from 2024 to 2025
CMS Open Payments shows 8 general payments to Dr. Barnhart from 4 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Axsome Therapeutics, Inc. paid the most, $187.
General payments to Dr. Barnhart by program year, 2024 to 2025
Companies that paid Dr. Barnhart the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Connor Barnhart serves on 1 committee
Dr. Barnhart serves on Northern California Psychiatric Society.
Dr. Barnhart's committees and leadership roles
- Northern California Psychiatric SocietyTreasurer
- 2021 to present
- California State Association of PsychiatristsBoard Member
- 2023 to 2024
Source: Dmand AI Professional Profile Data
Dr. John Connor Barnhart graduated from Perelman School of Medicine - Philadelphia
Dr. Barnhart graduated from Perelman School of Medicine - Philadelphia in 2019. Dr. Barnhart is a member of APA and NCPS.
- Medical school
- Board certified in psychiatry
Source: Dmand AI Professional Profile Data
Dr. John Connor Barnhart accepts plans from 1 insurance carrier
Dr. Barnhart is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
- CMS Medicare
Source: Dmand AI Insurance Network Data
Sources for Dr. John Connor Barnhart'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 |
| 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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. John Connor Barnhart
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. John Connor Barnhart's NPI number?
Dr. John Connor Barnhart's NPI number is 1154880144. It was assigned on March 18, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. John Connor Barnhart?
Dr. John Connor Barnhart is a psychiatrist in San Francisco, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. John Connor Barnhart practice?
Dr. Barnhart practices at 2238 Geary Blvd, San Francisco, CA 94115. Dr. Barnhart's primary practice is San Francisco Medical Center - Mammography in San Francisco, California. Dmand AI also links Dr. Barnhart to 1 group practice or clinic.
What is Dr. John Connor Barnhart's office phone number?
The practice phone on file for Dr. Barnhart is (415) 833-3700.
What is Dr. John Connor Barnhart's medical license number?
Dr. Barnhart holds California license A180630.
What medical group is Dr. John Connor Barnhart part of?
Dr. Barnhart is linked to The Permanente Medical Group, Inc.
Does Dr. John Connor Barnhart offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Barnhart as offering telehealth services.
Is Dr. John Connor Barnhart board certified?
Yes. Dr. Barnhart is board certified in psychiatry by the American Board of Psychiatry and Neurology.
Where did Dr. John Connor Barnhart go to medical school?
Dr. Barnhart graduated from Perelman School of Medicine - Philadelphia in 2019.
What drugs does Dr. John Connor Barnhart prescribe most?
In 2024 Medicare Part D data, Dr. Barnhart's most prescribed drugs by claims were Aripiprazole, Trazodone HCl and Mirtazapine.
Show 3 more questionsShow fewer questions
Has Dr. John Connor Barnhart received payments from drug or device companies?
CMS Open Payments shows $605 in general payments to Dr. Barnhart from 4 companies from 2024 to 2025. The largest total came from Axsome Therapeutics, Inc.
How long has Dr. John Connor Barnhart been practicing?
Dr. Barnhart graduated from medical school in 2019, 7 years ago.
What insurance does Dr. John Connor Barnhart accept?
Dr. Barnhart is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
Selling to psychiatry practices?
See psychiatrists 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