Johnna Nicole Walker, PA-C
Surgical Physician Assistant · San Francisco, CA
Johnna Nicole Walker, PA-C is a surgical physician assistant with a practice address in San Francisco, California, and NPI 1497919401, issued on Jul 18, 2008. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Johnna Nicole Walker
- Credential
- PA-C
- Primary taxonomy
- Surgical Physician Assistant 363AS0400X
- Practice location
- 3838 California St RM 715, San Francisco, CA 94118
- Phone
- (415) 668-8010
- Enumerated
- Jul 18, 2008
- Record last updated
- Aug 11, 2022
- Fax
- (415) 752-2560
- Medicare enrollment
- Enrolled (PECOS I20131218001736); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest surgical physician assistant records → All 1,075 in California → Look up another NPI →
Also registered at 3838 California St RM 715
A shared address usually means a shared clinic or building; it does not show who employs whom.
- James Aicardi, PA-CSurgical Physician Assistant1528557568
- Benedetta Ames, PAPhysician Assistant1942913058
- Seyed Arshad, DOOrthopaedic Surgery Physician1669030458
- Keith Chan, M.D.Sports Medicine (Orthopaedic Surgery) Physician1548452782
- Kanwaljit Gill, MDOrthopaedic Surgery Physician1679658348
- Virginia Hoptman, PA-CSurgical Physician Assistant1811531023
Verify Johnna Nicole Walker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average surgical physician assistant in 2024
772 Medicare Part D claims for 300 beneficiaries, against an average of 304 among the 10,174 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims. 302 claims were for opioids.
Most prescribed
- Oxycodone Hcl196 claims
- Celecoxib185 claims
- Amoxicillin86 claims
- Tramadol Hcl62 claims
- Diclofenac Sodium38 claims
- Hydrocodone-Acetaminophen36 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $32.29
1 payment: food and beverage; the largest payer was Bioventus LLC. The 7,578 providers of this specialty with any payment received $703.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- California Pacific Orthopaedics And Sports Medicine A Medical CorporatSan Francisco, CA
- Regents OF The University OF California - UcsfSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Johnna Nicole Walker among 1,075 surgical physician assistant records in California
Johnna Nicole Walker, PA-C is one of 1,075 surgical physician assistant records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 41% of them.
- NPI issued2008 · 41% of these records are older, 55% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2008 · median 2012 among the 649 with a school on file
- Record last updated2022 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AS0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgical Physician Assistant providers in California
There are 1,075 surgical physician assistant records in California.
All 1,075 in California → Every provider in San Francisco → Surgical Physician Assistant nationwide →
The 8 surgical physician assistant records with the nearest ZIP codes
- James Aicardi, PA-CSan Francisco, CA 941181528557568
- Virginia Hoptman, PA-CSan Francisco, CA 941181811531023
- Lauren Kim, PHYSICIAN ASSISTANTSan Francisco, CA 941181538732417
- Heena Mehta, PA-CSan Francisco, CA 941181386794758
- David Yen, PA-CSan Francisco, CA 941181396802005
- Alyssa Gee, PA-CSan Francisco, CA 941171508667106
- Eric Steckelman, PA-CSan Francisco, CA 941171629267703
- Pushpinder Beasley, PA-CSan Francisco, CA 941151033262746
Common questions
What is Johnna Nicole Walker, PA-C's NPI number?
Johnna Nicole Walker, PA-C's National Provider Identifier (NPI) is 1497919401, issued on Jul 18, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Johnna Nicole Walker, PA-C located?
The NPPES record lists a practice address at 3838 California St RM 715, San Francisco, CA, 94118. Phone: (415) 668-8010. Providers update this record themselves, so call before visiting.
How can I verify Johnna Nicole Walker, PA-C's license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Johnna Nicole Walker, PA-C prescribe under Medicare Part D?
In 2024, Johnna Nicole Walker, PA-C had 772 Medicare Part D claims for 300 beneficiaries; the average among surgical physician assistant prescribers was 304. Part D covers Medicare prescriptions only.
What is Johnna Nicole Walker, PA-C's MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.