NPPES file of Aug 9, 2026

Katherine Sarasas

Certified Registered Nurse Anesthetist · San Rafael, CA

Katherine Sarasas is a certified registered nurse anesthetist with a practice address in San Rafael, California, and NPI 1689948051, issued on Mar 2, 2012. Check the license (California 4173, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1689948051
Name
Katherine Sarasas
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License number
4173 CA
Self-reported in NPPES; status is on the state search
Practice location
99 Montecillo RD, San Rafael, CA 94903
Phone
(415) 444-2879
Enumerated
Mar 2, 2012
Record last updated
Jan 3, 2022
Medicare enrollment
Enrolled (PECOS I20120328000037); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 99 Montecillo RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Scott Adelman, MDCardiovascular Disease Physician1396829362
  2. Navid AfrahPhysical Therapist1275997017
  3. Omar Ahmed, PHARMDAmbulatory Care Pharmacist1285254037
  4. Mary Air, M.D.Physical Medicine & Rehabilitation Physician1376772913
  5. Tarik Alagha, MDInternal Medicine Physician1740869676
  6. Paul Alpert, MDUrology Physician1417031402

Verify Katherine Sarasas in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 4173
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

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The practice group's MIPS final score for 2023 (Medicare payment program): 91 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.

  1. Qualityout of 100 · 30% of the final score82.1
  2. Costout of 100 · 30%64.1
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $436.91

16 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 24,076 providers of this specialty with any payment received $135.08 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Katherine Sarasas$436.91
  2. Specialty average$135.08

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 3 group practices

  1. Amsurg Oakland Anesthesia LPOakland, CA
  2. Mai Nursing Anesthesia PCPinole, CA
  3. Permanente Medical Group IncVallejo, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Katherine Sarasas among 2,943 certified registered nurse anesthetist records in California

Katherine Sarasas is one of 2,943 certified registered nurse anesthetist records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 46% of them.

  • NPI issued2012 · 46% of these records are older, 51% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2011 · median 2016 among the 2,089 with a school on file
  • Record last updated2022 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Certified Registered Nurse Anesthetist providers in California

There are 2,943 certified registered nurse anesthetist records in California.

The 8 certified registered nurse anesthetist records with the nearest ZIP codes

  1. Jennifer ClarkSan Rafael, CA 949031023315231
  2. Christina RamirezSan Rafael, CA 949031023517133
  3. Susan Guidici, CRNAGreenbrae, CA 949041790799849
  4. Susan NickersonCorte Madera, CA 949251811163884
  5. Jeremy Carter, CRNASan Anselmo, CA 949601982985495
  6. Nan Hee Berg, CRNASausalito, CA 949651720444680
  7. Jeffry KuthanRichmond, CA 948041205375052
  8. Tamie Wright-DasseRichmond, CA 948041437440567

Common questions

What is Katherine Sarasas's NPI number?

Katherine Sarasas's National Provider Identifier (NPI) is 1689948051, issued on Mar 2, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Katherine Sarasas located?

The NPPES record lists a practice address at 99 Montecillo RD, San Rafael, CA, 94903. Phone: (415) 444-2879. Providers update this record themselves, so call before visiting.

How can I verify Katherine Sarasas's license?

NPPES lists California license number 4173, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

What is Katherine Sarasas's MIPS final score?

The 2023 MIPS final score is 91 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.