Sayaka Larsen
Family Nurse Practitioner · Putnam Valley, NY
Sayaka Larsen is a family nurse practitioner with a practice address in Putnam Valley, New York, and NPI 1184217283, issued on Feb 19, 2021. Check the license (New York F345579, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sayaka Larsen
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- F345579 NY
Self-reported in NPPES; status is on the state search - Practice location
- 356 Dennytown RD, Putnam Valley, NY 10579
- Phone
- (917) 543-4487
- Enumerated
- Feb 19, 2021
- Record last updated
- Feb 19, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20220516000143); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 14,805 in New York → Look up another NPI →
Verify Sayaka Larsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this profession
Search for license F345579Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average family nurse practitioner in 2024
137 Medicare Part D claims for 60 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 41% of claims.
Most prescribed
- Eliquis41 claims
- Metoprolol Succinate30 claims
- Xarelto15 claims
- Amiodarone Hcl14 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.
Bills Medicare through one group practice
- Westchester Medical Center Advanced Physician Services PCKingston, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sayaka Larsen among 14,805 family nurse practitioner records in New York
Sayaka Larsen is one of 14,805 family nurse practitioner records with a practice address in New York. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 63% of them.
- NPI issued2021 · 63% of these records are older, 30% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 49% of these records are
- Graduated2019 · median 2019 among the 7,239 with a school on file
- Record last updated2021 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 family nurse practitioner records list a practice address in Putnam Valley
They are 4 of the 115 NPPES records with a practice address in Putnam Valley, and 14,805 family nurse practitioner records in New York.
All 14,805 in New York → Every provider in Putnam Valley → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Linda Bellmare, FNPPutnam Valley, NY 105791700872058
- Matthew RanallettaPutnam Valley, NY 105791629486188
- Margaret Treanor, FNP-BCPutnam Valley, NY 105791972174662
- Lyncee Barrett, FNPRye, NY 105801013483296
- Michelle Beltran, FNPRye, NY 105801508564261
- Gina Ninan, FNPRye, NY 105801144090317
- Jung Yeon, NPRye, NY 105801447177506
- Kayla Angelo, DNP, FNP-BCPurchase, NY 105771518681394
Common questions
What is Sayaka Larsen's NPI number?
Sayaka Larsen's National Provider Identifier (NPI) is 1184217283, issued on Feb 19, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Sayaka Larsen located?
The NPPES record lists a practice address at 356 Dennytown RD, Putnam Valley, NY, 10579. Phone: (917) 543-4487. Providers update this record themselves, so call before visiting.
How can I verify Sayaka Larsen's license?
NPPES lists New York license number F345579, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Sayaka Larsen prescribe under Medicare Part D?
In 2024, Sayaka Larsen had 137 Medicare Part D claims for 60 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
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.