Sarah Marlyne Lake, NP
Family Nurse Practitioner · South Hadley, MA
Sarah Marlyne Lake, NP is a family nurse practitioner with a practice address in South Hadley, Massachusetts, and NPI 1558951475, issued on Jan 25, 2021. Check the license (Massachusetts RN2298356, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sarah Marlyne Lake
- Credential
- NP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- RN2298356 MA
Self-reported in NPPES; status is on the state search - Practice location
- 470 Granby Road, South Hadley, MA 01075
- Phone
- (413) 794-8700
- Enumerated
- Jan 25, 2021
- Record last updated
- Oct 16, 2025
- Fax
- (413) 794-8732
- Medicare enrollment
- Enrolled (PECOS I20210216001729); accepts Medicare assignment
- Medical or professional school
- University Of Massachusetts Medical School, 2020
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 4,724 in Massachusetts → Look up another NPI →
Also registered at 470 Granby Road
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jamie Brelsford, MSW, LICSWClinical Social Worker1912480617
- James Freeman, M.D.Internal Medicine Physician1376524272
- Sara Mohsin, MDInternal Medicine Physician1720666993
- Ashlee Osowski, NPFamily Nurse Practitioner1538650361
- Edward Ryter, MDInternal Medicine Physician1497744213
Verify Sarah Marlyne Lake in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN2298356Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% more Medicare Part D claims than the average family nurse practitioner in 2024
2,425 Medicare Part D claims for 289 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 65 claims were for opioids.
Most prescribed
- Atorvastatin Calcium162 claims
- Rosuvastatin Calcium111 claims
- Amlodipine Besylate95 claims
- Levothyroxine Sodium87 claims
- Sertraline Hcl78 claims
- Lisinopril77 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.
Industry payments in 2024: $196.82
3 payments; by number, the most common kind was food and beverage; the largest payer was Baxter Healthcare. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Baystate Medical Practices IncSouth Hadley, MA
- Holyoke Medical Center IncHolyoke, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sarah Marlyne Lake among 4,724 family nurse practitioner records in Massachusetts
Sarah Marlyne Lake, NP is one of 4,724 family nurse practitioner records with a practice address in Massachusetts. 71% 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 67% of them.
- NPI issued2021 · 67% of these records are older, 28% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2020 · median 2019 among the 2,704 with a school on file
- Record last updated2025 · 42% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
13 family nurse practitioner records list a practice address in South Hadley
They are 13 of the 346 NPPES records with a practice address in South Hadley, and 4,724 family nurse practitioner records in Massachusetts.
All 4,724 in Massachusetts → Every provider in South Hadley → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Patricia Alford, MS FNPSouth Hadley, MA 010751184239857
- Samantha Barcome, FNP-CSouth Hadley, MA 010751437746450
- Colleen Barker, FNP-CSouth Hadley, MA 010751205602851
- Megan Chartier, NPSouth Hadley, MA 010751154750719
- Emily Demartino, DNP, APRNSouth Hadley, MA 010751205231263
- Rebecca Gianni, N.P.South Hadley, MA 010751992118830
- Ashlee Osowski, NPSouth Hadley, MA 010751538650361
- Alyssa Pawlowski, NPSouth Hadley, MA 010751619288131
Common questions
What is Sarah Marlyne Lake, NP's NPI number?
Sarah Marlyne Lake, NP's National Provider Identifier (NPI) is 1558951475, issued on Jan 25, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Sarah Marlyne Lake, NP located?
The NPPES record lists a practice address at 470 Granby Road, South Hadley, MA, 01075. Phone: (413) 794-8700. Providers update this record themselves, so call before visiting.
How can I verify Sarah Marlyne Lake, NP's license?
NPPES lists Massachusetts license number RN2298356, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Sarah Marlyne Lake, NP prescribe under Medicare Part D?
In 2024, Sarah Marlyne Lake, NP had 2,425 Medicare Part D claims for 289 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.