Catherine Whitaker, MS, AGCNP-BC
Nurse Practitioner · Ashburnham, MA
Catherine Whitaker, MS, AGCNP-BC is a nurse practitioner with a practice address in Ashburnham, Massachusetts, and NPI 1093359895, issued on Nov 5, 2019. Check the license (Massachusetts RN2266727, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Catherine Whitaker
- Credential
- MS, AGCNP-BC
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- RN2266727 MA
Self-reported in NPPES; status is on the state search - Practice location
- 61 Main St, Ashburnham, MA 01430
- Phone
- (978) 827-5167
- Enumerated
- Nov 5, 2019
- Entity
- Type 1 · individual
Also registered at 61 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Catherine Whitaker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN2266727Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
3.7 times the Medicare Part D claims of the average nurse practitioner in 2024
4,119 Medicare Part D claims for 530 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. 95 claims were for opioids.
Most prescribed
- Atorvastatin Calcium273 claims
- Lisinopril228 claims
- Levothyroxine Sodium205 claims
- Omeprazole174 claims
- Amlodipine Besylate150 claims
- Rosuvastatin Calcium123 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: $407.14
5 payments, mostly food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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.
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
- Heywood Medical Group Inc.Gardner, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
1 nurse practitioner records list a practice address in Ashburnham
They are 1 of the 45 NPPES records with a practice address in Ashburnham, and 3,480 nurse practitioner records in Massachusetts.
Other nurse practitioner records in Massachusetts
- Paula Abate, NPWorcester, MA1336265909
- Carolyn Abbanat Villafane, NPBoston, MA1598810269
- Lisa Abbondanza, CNPFranklin, MA1770892630
- Elizabeth Abbruzzese, NPWorcester, MA1326645300
- Alberta Abbuah, PMHNPFramingham, MA1437873411
- Fatima AbdallaMelrose, MA1326407529
- Israh AbdeljaberWorcester, MA1912629528
- Erika AbeidFairhaven, MA1831084839
- Nina AbelowitzConcord, MA1528201704
- Esayas Abraham, NPChelsea, MA1851275895
Common questions
What is Catherine Whitaker, MS, AGCNP-BC's NPI number?
Catherine Whitaker, MS, AGCNP-BC's National Provider Identifier (NPI) is 1093359895, issued on Nov 5, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Catherine Whitaker, MS, AGCNP-BC located?
The NPPES record lists a practice address at 61 Main St, Ashburnham, MA, 01430. Phone: (978) 827-5167. Providers update this record themselves, so call before visiting.
How can I verify Catherine Whitaker, MS, AGCNP-BC's license?
NPPES lists Massachusetts license number RN2266727, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Catherine Whitaker, MS, AGCNP-BC prescribe under Medicare Part D?
In 2024, Catherine Whitaker, MS, AGCNP-BC had 4,119 Medicare Part D claims for 530 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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) 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 27, 2026.