NPPES file of Aug 9, 2026

Mary Okimoto, NP

Nurse Practitioner · San Luis Obispo, CA

Mary Okimoto, NP is a nurse practitioner with a practice address in San Luis Obispo, California, and NPI 1144400771, issued on Nov 12, 2007. Check the license (California 17444, 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
1144400771
Name
Mary Okimoto
Credential
NP
Primary taxonomy
Nurse Practitioner 363L00000X
License numbers
17444 CA
567717 CA
Self-reported in NPPES; status is on the state search
Practice location
892 Aerovista PL Ste 240, San Luis Obispo, CA 93401
Phone
(305) 395-3277
Enumerated
Nov 12, 2007
Record last updated
Feb 11, 2025
Medicare enrollment
Enrolled (PECOS I20080130000425); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 892 Aerovista PL Ste 240

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

  1. Darby Bosco, MS, LCGCGenetic Counselor (M.S.)1700751245
  2. Erin Chamberlain, M.D.Hematology & Oncology Physician1902249469
  3. Joseph ClevelandHematology & Oncology Physician1992209381
  4. Kelli Compean, NPFamily Nurse Practitioner1114488830
  5. Brian Dicarlo, MDHematology & Oncology Physician1982728796
  6. Levanto Schachter, D.O.Hematology & Oncology Physician1093031668

Verify Mary Okimoto 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 17444
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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75% fewer Medicare Part D claims than the average nurse practitioner in 2024

276 Medicare Part D claims for 102 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims. 30 claims were for opioids.

  1. Mary Okimoto276
  2. Specialty average1,109

Most prescribed

  1. Ondansetron Hcl13 claims
  2. Oxycodone Hcl12 claims
  3. Gabapentin11 claims
  4. Nubeqa11 claims
  5. Omeprazole11 claims
  6. Prednisone11 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): 86.1 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 score82.9
  2. Costout of 100 · 30%66.7
  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: $481.53

6 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mary Okimoto$481.53
  2. Specialty average$791.64

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

Bills Medicare through one group practice

  1. The Regents OF The University OF CaliforniaSanta Monica, CA

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

Nurse Practitioner providers in California

There are 8,223 nurse practitioner records in California.

Other nurse practitioner records in California

  1. Barbara Aaronson, RN/NURSE PRACTITONERLos Angeles, CA1588988182
  2. Albert Aba, AGNPSan Francisco, CA1578353777
  3. Martha Ababneh, CNAEl Monte, CA1275118614
  4. Maria Katrina Abad, AGPCNP-BCSan Carlos, CA1306394952
  5. Shayda Abadi, NPPalo Alto, CA1316745540
  6. Jessika Abarca, NPSan Fernando, CA1972263945
  7. Hangama Abassi, N.P.Walnut Creek, CA1487083655
  8. Elizabeth Abaunza, NPSan Francisco, CA1962044347
  9. Honeylynn Abaya, NPMoreno Valley, CA1528799145
  10. Tara Abbondanza, NPArcadia, CA1730355173

Common questions

What is Mary Okimoto, NP's NPI number?

Mary Okimoto, NP's National Provider Identifier (NPI) is 1144400771, issued on Nov 12, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Mary Okimoto, NP located?

The NPPES record lists a practice address at 892 Aerovista PL Ste 240, San Luis Obispo, CA, 93401. Phone: (305) 395-3277. Providers update this record themselves, so call before visiting.

How can I verify Mary Okimoto, NP's license?

NPPES lists California license number 17444, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Mary Okimoto, NP prescribe under Medicare Part D?

In 2024, Mary Okimoto, NP had 276 Medicare Part D claims for 102 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.

What is Mary Okimoto, NP's MIPS final score?

The 2023 MIPS final score is 86.1 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.