Dr. Gemma M. Lopez, MD
- Industry payments
- $101
- Affiliated sites
- 1
- Medical group
- 1
- Insurance carriers
- 3
- State license
- 1
- Practice address
- 181 2nd Ave, San Mateo, CA 94401
- Practice phone
- Call (415) 922-9122
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Baywell Psychiatry Group
San Mateo, California
Find Dr. Lopez'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. Gemma M. Lopez is a psychiatrist in San Mateo, California
Dr. Lopez practices at Baywell Psychiatry Group in San Mateo, California.
Dr. Lopez's NPI, 1801050323, was assigned on July 14, 2008. Dr. Lopez graduated from Creighton University School of Medicine - Omaha in 2005. Dr. Lopez holds California license A98513.
- NPI
- 1801050323NPI Registry (opens in a new tab)
- NPI enumeration date
- July 14, 2008
- NPI status
- Active
- Practice phone
- (415) 922-9122
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Gemma M. Lopez practices at Baywell Psychiatry Group in San Mateo, California
Dr. Lopez's primary practice is Baywell Psychiatry Group, at 181 2nd Ave, San Mateo, CA 94401 in San Mateo County. The practice phone is (415) 922-9122.
- Baywell Psychiatry Group181 2nd Ave, San Mateo, CA 94401 · San Mateo CountyPhone(415) 922-9122
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Gemma M. Lopez is affiliated with 2 sites of care and 1 medical group
Dr. Lopez's primary practice is Baywell Psychiatry Group in San Mateo, California. Dmand AI also links Dr. Lopez to 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Gemma M. Lopez's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lopez practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Baywell Psychiatry Group | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gemma M. Lopez is one of 6,803 psychiatrists in California
Psychiatry is Dr. Lopez's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Lopez is board certified in child & adolescent psychiatry by the American Board of Psychiatry and Neurology. Dr. Lopez is licensed in California.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
Psychiatrists near Dr. Lopez
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. Gemma M. Lopez's patients have a median age of 41
Across all payers, Dmand AI patient panel data puts Dr. Lopez's median patient age at 41, with 84% women.
Dr. Lopez's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 41
Patient panel by sex, all payers
- Women84%
- Men16%
Source: Dmand AI Patient Panel Data
Dr. Gemma M. Lopez received $101 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Lopez from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Abbott Laboratories paid the most, $101.
Companies that paid Dr. Lopez 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. Gemma M. Lopez graduated from Creighton University School of Medicine - Omaha
Dr. Lopez graduated from Creighton University School of Medicine - Omaha in 2005.
- Medical school
- Board certified in child & adolescent psychiatry
- Board certified in psychiatry
Source: Dmand AI Professional Profile Data
Dr. Gemma M. Lopez accepts plans from 3 insurance carriers
Dr. Lopez is in network with 3 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. HMO plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Elevance
Plan types Dr. Lopez accepts, by number of carriers
- HMO3
- POS2
- PPO2
- EPO1
- Medicare1
Source: Dmand AI Insurance Network Data
Sources for Dr. Gemma M. Lopez'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 |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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. Gemma M. Lopez
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. Gemma M. Lopez's NPI number?
Dr. Gemma M. Lopez's NPI number is 1801050323. It was assigned on July 14, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Gemma M. Lopez?
Dr. Gemma M. Lopez is a psychiatrist in San Mateo, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Gemma M. Lopez practice?
Dr. Lopez practices at 181 2nd Ave, San Mateo, CA 94401. Dr. Lopez's primary practice is Baywell Psychiatry Group in San Mateo, California. Dmand AI also links Dr. Lopez to 1 group practice or clinic and 1 medical group.
What is Dr. Gemma M. Lopez's office phone number?
The practice phone on file for Dr. Lopez is (415) 922-9122.
What is Dr. Gemma M. Lopez's medical license number?
Dr. Lopez holds California license A98513.
Is Dr. Gemma M. Lopez board certified?
Yes. Dr. Lopez is board certified in child & adolescent psychiatry by the American Board of Psychiatry and Neurology.
Where did Dr. Gemma M. Lopez go to medical school?
Dr. Lopez graduated from Creighton University School of Medicine - Omaha in 2005.
Has Dr. Gemma M. Lopez received payments from drug or device companies?
CMS Open Payments shows $101 in general payments to Dr. Lopez from 1 company from 2025 to 2025. The largest total came from Abbott Laboratories.
How long has Dr. Gemma M. Lopez been practicing?
Dr. Lopez graduated from medical school in 2005, 21 years ago.
What insurance does Dr. Gemma M. Lopez accept?
Dr. Lopez is in network with 3 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. HMO plans come from the most carriers, 3. Check the plan with the practice before a visit.
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