HIV InfectionsLentivirus Infections
Dr. Mitchell Besser, MD
NPI1992814719
- Clinical trials
- 1
- Industry payments
- $15
- Insurance carriers
- 3
- State licenses
- 2
- Year NPI issued
- 2006
- Practice address
- 150 Valpreda Rd, San Marcos, CA 92069-2973
- Practice phone
- Call (760) 736-6780
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Besser'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. Mitchell Besser is an OB-GYN in San Marcos, California
Dr. Besser practices in San Marcos, California.
Dr. Besser's NPI, 1992814719, was assigned on August 29, 2006. Dr. Besser graduated from Harvard Medical School in 1981. Dr. Besser holds California license G50257.
NPI and contact details
- NPI
- 1992814719NPI Registry (opens in a new tab)
- NPI enumeration date
- August 29, 2006
- NPI status
- Active
- Practice phone
- (760) 736-6780
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Mitchell Besser's practice address is in San Marcos, California
Dr. Besser's practice address in the NPI Registry is 150 Valpreda Rd, San Marcos, CA 92069-2973. The practice phone is (760) 736-6780.
- NPI Registry address150 Valpreda Rd, San Marcos, CA 92069-2973Phone(760) 736-6780
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Mitchell Besser's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Besser practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Besser's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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See the EHR and IT leaders at every site where Dr. Besser practices
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Dr. Mitchell Besser is one of 4,642 OB-GYNs in California
Obstetrics and gynecology is Dr. Besser's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Besser is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology. Dmand AI has Dr. Besser's licenses on file in 2 states: California and New Jersey.
Specialties and state licenses
- Obstetrics and gynecology, CaliforniaPrimary
- New Jersey license
OB-GYNs near Dr. Besser
Counts of OB-GYNs with a Dmand AI profile, by place and practice. Each opens the list.
4,642OB-GYNs in California
8OB-GYNs in San Marcos
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mitchell Besser's patients have a median age of 89
Across all payers, Dmand AI patient panel data puts Dr. Besser's median patient age at 89, with 100% women.
Dr. Besser's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 89
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Mitchell Besser has worked on 1 clinical trial
Dmand AI links Dr. Besser to 1 clinical trial. Conditions studied include HIV Infections and Lentivirus Infections.
Conditions in Dr. Besser's trials
- HIV Infections
- Lentivirus Infections
Investigators on the most trials with Dr. Besser
Recent clinical trials with Dr. Besser
Sources: ClinicalTrials.gov (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mitchell Besser received $15 in industry payments in 2024
CMS Open Payments shows 1 general payment to Dr. Besser from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. ViiV Healthcare Company paid the most, $15.
Companies that paid Dr. Besser the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mitchell Besser graduated from Harvard Medical School
Dr. Besser graduated from Harvard Medical School in 1981.
- Medical school
- Board certified in obstetrics & gynecology
Source: Dmand AI Professional Profile Data
Dr. Mitchell Besser accepts plans from 3 insurance carriers
Dr. Besser is in network with 3 carriers, including Elevance, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Massachusetts
- HCSC
Plan types Dr. Besser accepts, by number of carriers
- Medicare3
- PPO3
- HMO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Mitchell Besser'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Clinical trials and co-investigators | ClinicalTrials.gov (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. Mitchell Besser
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. Mitchell Besser's NPI number?
Dr. Mitchell Besser's NPI number is 1992814719. It was assigned on August 29, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mitchell Besser?
Dr. Mitchell Besser is an OB-GYN in San Marcos, California. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Mitchell Besser practice?
Dr. Besser practices at 150 Valpreda Rd, San Marcos, CA 92069-2973.
What is Dr. Mitchell Besser's office phone number?
The practice phone on file for Dr. Besser is (760) 736-6780.
What is Dr. Mitchell Besser's medical license number?
Dr. Besser holds California license G50257, one of the licenses on file in 2 states.
Which states has Dr. Mitchell Besser been licensed in?
Dmand AI has state licenses on file for Dr. Besser in California (1983 to 2026) and New Jersey (2004 to 2017).
Is Dr. Mitchell Besser board certified?
Yes. Dr. Besser is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology.
Where did Dr. Mitchell Besser go to medical school?
Dr. Besser graduated from Harvard Medical School in 1981.
Has Dr. Mitchell Besser received payments from drug or device companies?
CMS Open Payments shows $15 in general payments to Dr. Besser from 1 company from 2024 to 2024. The largest total came from ViiV Healthcare Company.
How long has Dr. Mitchell Besser been practicing?
Dr. Besser graduated from medical school in 1981, 45 years ago.
Does Dr. Mitchell Besser do research?
Dr. Besser has worked on 1 clinical trial.
What insurance does Dr. Mitchell Besser accept?
Dr. Besser is in network with 3 carriers, including Elevance, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
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