Dr. Vignessh Kumar, MD
- Hospital affiliations
- 1
- Industry payments
- $4,716
- Medical groups
- 3
- State license
- 1
- Year NPI issued
- 2019
- Practice address
- 400 Parnassus Ave Mcb300, San Francisco, CA 94143-0810
- Practice phone
- Call (415) 476-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
University Of California San Francisco - Primary Care - San Francisco (400 Parnassus Ave)
Multi-specialty group site · San Francisco, California
Find Dr. Kumar'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. Vignessh Kumar is a neurosurgeon in San Francisco, California
Dr. Kumar practices at University Of California San Francisco - Primary Care - San Francisco (400 Parnassus Ave) in San Francisco, California.
Dr. Kumar's NPI, 1649730359, was assigned on March 20, 2019. Dr. Kumar holds California license A207444.
- NPI
- 1649730359NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7012482698
- NPI enumeration date
- March 20, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (415) 476-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Vignessh Kumar practices at University of California San Francisco - Primary Care - San Francisco (400 Parnassus Ave) in San Francisco, California
Dr. Kumar's primary practice is University of California San Francisco - Primary Care - San Francisco (400 Parnassus Ave), at 400 Parnassus Ave Mcb300, San Francisco, CA 94143-0810. The practice phone is (415) 476-1000.
- University of California San Francisco - Primary Care - San Francisco (400 Parnassus Ave)400 Parnassus Ave Mcb300, San Francisco, CA 94143-0810Phone(415) 476-1000
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Vignessh Kumar is affiliated with 3 sites of care and 3 medical groups
Dr. Kumar's primary practice is University Of California San Francisco - Primary Care - San Francisco (400 Parnassus Ave) in San Francisco, California. Dr. Kumar is also affiliated with UCSF Helen Diller Medical Center at Parnassus Heights. The medical group on file is UCSF Pediatrics. Dmand AI also links Dr. Kumar to 2 more medical groups and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Vignessh Kumar's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kumar practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University Of California San Francisco - Primary Care - San Francisco (400 Parnassus Ave) | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Vignessh Kumar is one of 846 neurosurgeons in California
Neurological surgery is Dr. Kumar's primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dr. Kumar is licensed in California.
Specialties and state licenses
- Neurological surgery, CaliforniaPrimary
Neurosurgeons near Dr. Kumar
Counts of neurosurgeons 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. Vignessh Kumar offers telehealth to Medicare patients
Dr. Kumar accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Kumar as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Dr. Vignessh Kumar received $4,716 in industry payments from 2024 to 2025
CMS Open Payments shows 62 general payments to Dr. Kumar from 8 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 92% of the total. Stryker Corporation paid the most, $1,589.
General payments to Dr. Kumar by program year, 2024 to 2025
General payments to Dr. Kumar by kind, 2024 to 2025
- Food and beverage$4,32592%
- Travel and lodging$3918%
Companies that paid Dr. Kumar the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Vignessh Kumar'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (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) |
| 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. Vignessh Kumar
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. Vignessh Kumar's NPI number?
Dr. Vignessh Kumar's NPI number is 1649730359. It was assigned on March 20, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Vignessh Kumar?
Dr. Vignessh Kumar is a neurosurgeon in San Francisco, California. The primary specialty in the NPI Registry is Neurological Surgery Physician (taxonomy code 207T00000X).
Where does Dr. Vignessh Kumar practice?
Dr. Kumar practices at 400 Parnassus Ave Mcb300, San Francisco, CA 94143-0810. Dr. Kumar's primary practice is University Of California San Francisco - Primary Care - San Francisco (400 Parnassus Ave) in San Francisco, California. Dmand AI also links Dr. Kumar to 2 medical groups and 1 group practice or clinic.
What is Dr. Vignessh Kumar's office phone number?
The practice phone on file for Dr. Kumar is (415) 476-1000.
What is Dr. Vignessh Kumar's medical license number?
Dr. Kumar holds California license A207444, one of 2 state licenses on file.
Which hospitals is Dr. Vignessh Kumar affiliated with?
Dr. Kumar is affiliated with UCSF Helen Diller Medical Center at Parnassus Heights.
What medical group is Dr. Vignessh Kumar part of?
Dr. Kumar is linked to UCSF Pediatrics. Dmand AI links Dr. Kumar to 2 more medical groups.
Does Dr. Vignessh Kumar accept Medicare?
Yes. CMS lists Dr. Kumar as accepting Medicare assignment.
Does Dr. Vignessh Kumar offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Kumar as offering telehealth services.
Has Dr. Vignessh Kumar received payments from drug or device companies?
CMS Open Payments shows $4,716 in general payments to Dr. Kumar from 8 companies from 2024 to 2025. The largest total came from Stryker Corporation.
How long has Dr. Vignessh Kumar been practicing?
Dr. Kumar's NPI was assigned in 2019.
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