Caitlin R. Castellot, NP
Women's Health Nurse Practitioner · Acton, MA
Caitlin R. Castellot, NP is a women's health nurse practitioner with a practice address in Acton, Massachusetts, and NPI 1558677039, issued on Aug 23, 2010. Check the license (Massachusetts 2258894, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Caitlin R. Castellot
- Credential
- NP
- Primary taxonomy
- Women's Health Nurse Practitioner 363LW0102X
- License number
- 2258894 MA
Self-reported in NPPES; status is on the state search - Practice location
- 321 Main St, Acton, MA 01720
- Phone
- (978) 635-8700
- Enumerated
- Aug 23, 2010
- Record last updated
- Jul 12, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (978) 635-8923
- Medicare enrollment
- Enrolled (PECOS I20101123000745); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 321 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christopher Bechtel, NPNurse Practitioner1144578626
- Meryl BergerNurse Practitioner1922600220
- Louis Berk, M.D.Family Medicine Physician1730501875
- Elizabeth Berman, RDN, LDNRegistered Dietitian1679949143
- Christine Brown, M.D.Internal Medicine Physician1588861660
- Samuel BrownClinical Social Worker1336576065
Verify Caitlin R. Castellot in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 2258894Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
24.8 times the Medicare Part D claims of the average women's health nurse practitioner in 2024
5,383 Medicare Part D claims for 1,023 beneficiaries, against an average of 217 among the 3,809 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium695 claims
- Amlodipine Besylate327 claims
- Lisinopril316 claims
- Levothyroxine Sodium272 claims
- Hydrochlorothiazide235 claims
- Losartan Potassium203 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): 87.1 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $23.48
1 payment: food and beverage; the largest payer was Gilead Sciences, Inc. The 3,574 providers of this specialty with any payment received $426.02 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 one group practice
- Acton Medical Associates PCActon, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Women's Health Nurse Practitioner providers in Massachusetts
There are 329 women's health nurse practitioner records in Massachusetts.
Other women's health nurse practitioner records in Massachusetts
- Margaret Abisla, N.P.Wareham, MA1396863205
- Marjorie AdamsDover, MA1477418531
- Stephanie Adams, RN, NPBoston, MA1700246428
- Marisa Albert, DNP, WHNP-BCBoston, MA1700776531
- Nicole AlbertaBoston, MA1831946722
- Christina Allen, CNPBoston, MA1922407618
- Jennifer Andrade, N.P.Boston, MA1144696642
- Nicole Anim, CPNPCambridge, MA1619227667
- Oluwabusayo Anyagwochu, DNP, WHNP-BCBrockton, MA1306623517
- Alexa Arlos, NPBoston, MA1851350482
Common questions
What is Caitlin R. Castellot, NP's NPI number?
Caitlin R. Castellot, NP's National Provider Identifier (NPI) is 1558677039, issued on Aug 23, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Caitlin R. Castellot, NP located?
The NPPES record lists a practice address at 321 Main St, Acton, MA, 01720. Phone: (978) 635-8700. Providers update this record themselves, so call before visiting.
How can I verify Caitlin R. Castellot, NP's license?
NPPES lists Massachusetts license number 2258894, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Caitlin R. Castellot, NP prescribe under Medicare Part D?
In 2024, Caitlin R. Castellot, NP had 5,383 Medicare Part D claims for 1,023 beneficiaries; the average among women's health nurse practitioner prescribers was 217. Part D covers Medicare prescriptions only.
What is Caitlin R. Castellot, NP's MIPS final score?
The 2023 MIPS final score is 87.1 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.