Jennifer Clark
NPI 1023315231 · Certified Registered Nurse Anesthetist · San Rafael, CA
Enrolled with Medicare as Practitioner - Certified Registered Nurse Anesthetist (crna) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jennifer Clark is a Certified Registered Nurse Anesthetist provider in San Rafael, CA (NPI 1023315231).
Provider details
- NPI number
- 1023315231
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 086522 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
39 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Anesthesia for Procedure on Nerves, Muscles, Tendons, and Tissue of Forearm, Wrist, and Hand01810 | 15 | $138 |
| Anesthesia for Retinal Surgery00145 | 12 | $207 |
| Anesthesia for Exam of Colon Using an Endoscope00812 | 12 | $108 |
Typical Medicare-allowed amounts for these services range $108–$207 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-02-24
- Last updated
- 2022-01-11
- Certified
- 2022-01-11
Frequently asked questions
- What is Jennifer Clark's NPI number?
- Jennifer Clark's National Provider Identifier (NPI) is 1023315231, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jennifer Clark's specialty?
- Jennifer Clark is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Jennifer Clark located?
- Jennifer Clark's practice location on file with NPPES is 99 Montecillo Rd, San Rafael, CA 94903-3308.
- What is Jennifer Clark's phone number?
- The practice phone number listed in the NPPES registry for Jennifer Clark is (925) 229-7693.
- Does Jennifer Clark accept Medicare?
- Jennifer Clark is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jennifer Clark's NPI active?
- Yes — Jennifer Clark's NPI (1023315231) is active in the NPPES registry as of the last update on 2022-01-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.