Rex A. Saekow, NP
Psychiatric/Mental Health Nurse Practitioner · San Francisco, CA
Rex A. Saekow, NP is a psychiatric/mental health nurse practitioner with a practice address in San Francisco, California, and NPI 1033219621, issued on Sep 23, 2006. Check the license (California 16135, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Rex A. Saekow
- Credential
- NP
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License number
- 16135 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1563 Mission St Ste A, San Francisco, CA 94103
- Phone
- (628) 217-5200
- Enumerated
- Sep 23, 2006
- Record last updated
- May 18, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (415) 553-3900
- Medicaid ID
- 16135 CA
- Medicare enrollment
- Enrolled (PECOS I20100728000799); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 4,226 in California → Look up another NPI →
Also registered at 1563 Mission St Ste A
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Herman Carrera, ACSWSocial Worker1013328772
- Valerie Holybee, M.F.T.Marriage & Family Therapist1083737035
- Anita Ramanathan, M.D.Psychiatry Physician1881721678
- Michelle Roberts, L.C.S.W.Clinical Social Worker1245523281
Verify Rex A. Saekow in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 16135Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024
853 Medicare Part D claims for 79 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims.
Most prescribed
- Quetiapine Fumarate95 claims
- Trazodone Hcl71 claims
- Olanzapine61 claims
- Risperidone58 claims
- Sertraline Hcl54 claims
- Aripiprazole48 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): 90.3 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).
Bills Medicare through one group practice
- City And County OF San FranciscoSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rex A. Saekow among 4,226 psychiatric/mental health nurse practitioner records in California
Rex A. Saekow, NP is one of 4,226 psychiatric/mental health nurse practitioner records with a practice address in California. 62% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than under 1% of them.
- NPI issued2006 · under 1% of these records are older, 96% newer
- In a Medicare fileYes · 62% of these records are
- In the CMS Doctors and Clinicians fileYes · 46% of these records are
- Graduated2005 · median 2021 among the 1,965 with a school on file
- Record last updated2018 · 16% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatric/Mental Health Nurse Practitioner providers in California
There are 4,226 psychiatric/mental health nurse practitioner records in California.
All 4,226 in California → Every provider in San Francisco → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Malaika AlertSan Francisco, CA 941031679242481
- Clarissa Bush, NPSan Francisco, CA 941031174878151
- Maria CellesSan Francisco, CA 941031912377573
- Kathleen Gilligan, RN, NPSan Francisco, CA 941031962834150
- Lucy Hsu, N.P.San Francisco, CA 941031013188333
- Ethan HuffmanSan Francisco, CA 941031609473735
- Marcella Johnson-Santana, NPSan Francisco, CA 941031740659242
- Emilio Orozco, NPSan Francisco, CA 941031225165822
Common questions
What is Rex A. Saekow, NP's NPI number?
Rex A. Saekow, NP's National Provider Identifier (NPI) is 1033219621, issued on Sep 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Rex A. Saekow, NP located?
The NPPES record lists a practice address at 1563 Mission St Ste A, San Francisco, CA, 94103. Phone: (628) 217-5200. Providers update this record themselves, so call before visiting.
How can I verify Rex A. Saekow, NP's license?
NPPES lists California license number 16135, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Rex A. Saekow, NP prescribe under Medicare Part D?
In 2024, Rex A. Saekow, NP had 853 Medicare Part D claims for 79 beneficiaries; the average among psychiatric/mental health nurse practitioner prescribers was 906. Part D covers Medicare prescriptions only.
What is Rex A. Saekow, NP's MIPS final score?
The 2023 MIPS final score is 90.3 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.