Marissa Stein, CRNA
NPI 1346256518 · Certified Registered Nurse Anesthetist · Saint Helena, CA
Enrolled with Medicare as Practitioner - Certified Registered Nurse Anesthetist (crna) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marissa Stein, CRNA is a Certified Registered Nurse Anesthetist provider in Saint Helena, CA (NPI 1346256518).
Provider details
- NPI number
- 1346256518
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNA
- Sex
- Female
- Sole proprietor
- No
- License
- 240985 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
412 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 Lens Surgery00142 | 164 | $130 |
| Anesthesia for Procedure on Nerves, Muscles, Tendons, and Tissue of Forearm, Wrist, and Hand01810 | 46 | $108 |
| Anesthesia for Exam of Colon Using an Endoscope00812 | 35 | $102 |
| Anesthesia for Other Procedure Or Exam of Knee Joint Using an Endoscope01400 | 23 | $149 |
| Anesthesia for Procedure for Total Knee Joint Replacement01402 | 23 | $174 |
| Anesthesia for X-Ray Or Radiation Therapy01922 | 23 | $200 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$105 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-31
- Last updated
- 2014-08-05
Frequently asked questions
- What is Marissa Stein's NPI number?
- Marissa Stein's National Provider Identifier (NPI) is 1346256518, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Stein's specialty?
- Marissa Stein is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marissa Stein located?
- Marissa Stein's practice location on file with NPPES is 10 Woodland Rd, Saint Helena, CA 94574-9554.
- What is Marissa Stein's phone number?
- The practice phone number listed in the NPPES registry for Marissa Stein is (707) 963-3611.
- Does Marissa Stein accept Medicare?
- Marissa Stein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marissa Stein's NPI active?
- Yes — Marissa Stein's NPI (1346256518) is active in the NPPES registry as of the last update on 2014-08-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.