Dr. Nima A. Grissom, MD
- Medicare services, 2023
- 24
- Part D claims, 2021
- 12
- Affiliated sites
- 2
- Medical group
- 1
- Insurance carriers
- 2
- Practice address
- 3801 Sacramento St, San Francisco, CA 94118
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Stanford Childrens Health at California Pacific Medical Center - HOPD
Acute Care Hospital outpatient department · San Francisco, California
Find Dr. Grissom's professional email, personal email and mobile number
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Dr. Nima A. Grissom is a general surgeon in San Francisco, California
Dr. Grissom practices at Stanford Childrens Health at California Pacific Medical Center - HOPD in San Francisco, California.
Dr. Grissom's NPI, 1144391897, was assigned on November 13, 2006. Dr. Grissom graduated from Joe R. & Teresa Lozano Long School of Medicine in 1978. Dr. Grissom holds California license C38970.
- NPI
- 1144391897NPI Registry (opens in a new tab)
- NPI enumeration date
- November 13, 2006
- NPI status
- Active
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 74
- Medical school graduation
- 1978
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Nima A. Grissom practices at Stanford Childrens Health at California Pacific Medical Center - HOPD in San Francisco, California
Dr. Grissom's primary practice is Stanford Childrens Health at California Pacific Medical Center - HOPD, at 3801 Sacramento St, San Francisco, CA 94118.
- Stanford Childrens Health at California Pacific Medical Center - HOPD3801 Sacramento St, San Francisco, CA 94118
Source: Dmand AI Affiliation Data
Dr. Nima A. Grissom is affiliated with 2 sites of care and 1 medical group
Dr. Grissom's primary practice is Stanford Childrens Health at California Pacific Medical Center - HOPD in San Francisco, California. The medical group on file is Palo Alto Foundation Medical Group. Dmand AI also links Dr. Grissom to 1 more group practice or clinic, named with a free account. Dr. Grissom's employer is on file too: a hospital.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Nima A. Grissom's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Grissom practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Stanford Childrens Health at California Pacific Medical Center - HOPD | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nima A. Grissom is one of 2,926 general surgeons in California
Surgery is Dr. Grissom's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dmand AI has Dr. Grissom's licenses on file in 2 states: California and Texas.
Specialties and state licenses
- Surgery, CaliforniaPrimary
- Texas license
Clinical focus
Dmand AI lists breast reconstruction, breast surgery and mastectomy among the conditions Dr. Grissom treats.
General surgeons near Dr. Grissom
Counts of general surgeons 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. Nima A. Grissom billed Medicare for 24 services in 2023
CMS data shows 24 Medicare services from Dr. Grissom across 2 procedure codes in 2023. Medicare paid $9,864 for them.
Dr. Grissom's Medicare services by type, 2021 to 2023
- 2021
- 2023
- Surgery
- 2021: 472023: 1372%
- Office and hospital visits
- 2021: 1902023: 1194%
- Imaging
- 2021: 112023: 0100%
Where Dr. Grissom's Medicare services took place, 2023
- In an office1146%
- In a facility1354%
Dr. Grissom compared with the California median for general surgeons, 2023
- Dr. Grissom
- California median
- Medicare services
- 24vs 16686% below
- Part D claims
- 12vs 3465% below
Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.
Dr. Grissom's most billed Medicare procedure codes, 2023
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Grissom and other general surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nima A. Grissom's patients have a median age of 70
Across all payers, Dmand AI patient panel data puts Dr. Grissom's median patient age at 70, with 90% women.
Dr. Grissom's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women90%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Nima A. Grissom wrote 12 Medicare Part D claims in 2021
In 2021, Dr. Grissom wrote 12 Medicare Part D claims. They cover 1 drug, with $86 in total drug cost. In 2020, CMS named 36 claims across 2 drugs.
Dr. Grissom's most prescribed drugs by claims, 2021
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 362021: 1267%
Drugs named by CMS: 1 in 2021, 2 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Nima A. Grissom has 4 awards and honors on record
Dmand AI lists 4 awards for Dr. Grissom, most recently Regional Top Doctor in 2014.
Awards and honors for Dr. Grissom
- 2014
- Regional Top Doctor
- 2013
- CMS Stage 1 EHR
- Undated
- ACS Fellow
- Checkbook Top Doc
Source: Dmand AI Professional Profile Data
Dr. Nima A. Grissom graduated from Joe R. & Teresa Lozano Long School of Medicine
Dr. Grissom graduated from Joe R. & Teresa Lozano Long School of Medicine in 1978. Dr. Grissom is a member of ACS.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Nima A. Grissom accepts plans from 2 insurance carriers
Dr. Grissom is in network with 2 carriers, including Elevance and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Michigan
Plan types Dr. Grissom accepts, by number of carriers
- HMO2
- POS2
- PPO2
- EPO1
- Medicare1
Source: Dmand AI Insurance Network Data
Sources for Dr. Nima A. Grissom'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 Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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) |
| 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. Nima A. Grissom
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. Nima A. Grissom's NPI number?
Dr. Nima A. Grissom's NPI number is 1144391897. It was assigned on November 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Nima A. Grissom?
Dr. Nima A. Grissom is a general surgeon in San Francisco, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Nima A. Grissom practice?
Dr. Grissom practices at 3801 Sacramento St, San Francisco, CA 94118. Dr. Grissom's primary practice is Stanford Childrens Health at California Pacific Medical Center - HOPD in San Francisco, California. Dmand AI also links Dr. Grissom to 1 group practice or clinic.
What is Dr. Nima A. Grissom's medical license number?
Dr. Grissom holds California license C38970, one of the licenses on file in 2 states.
Which states has Dr. Nima A. Grissom been licensed in?
Dmand AI has state licenses on file for Dr. Grissom in California (1979 to 2027) and Texas (1978 to 1988).
What medical group is Dr. Nima A. Grissom part of?
Dr. Grissom is linked to Palo Alto Foundation Medical Group.
Does Dr. Nima A. Grissom accept Medicare?
Yes. CMS data shows Dr. Grissom billed Medicare for 24 services in 2023.
What services does Dr. Nima A. Grissom bill to Medicare?
In 2023, Dr. Grissom's most billed Medicare services were surgery: skin and soft tissue (19301) and office visit, new patient (99205).
Where did Dr. Nima A. Grissom go to medical school?
Dr. Grissom graduated from Joe R. & Teresa Lozano Long School of Medicine in 1978.
What drugs does Dr. Nima A. Grissom prescribe most?
In 2021 Medicare Part D data, Dr. Grissom's most prescribed drugs by claims were Oxycodone-Acetaminophen.
How long has Dr. Nima A. Grissom been practicing?
Dr. Grissom graduated from medical school in 1978, 48 years ago.
What insurance does Dr. Nima A. Grissom accept?
Dr. Grissom is in network with 2 carriers, including Elevance and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
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