NPPES file of Aug 9, 2026

Amanda A. Westlake, M.D.

Internal Medicine Physician · Springfield, MA

Amanda A. Westlake, M.D. is an internal medicine physician with a practice address in Springfield, Massachusetts, and NPI 1154687820, issued on Apr 7, 2012. Check the license (Massachusetts 270261, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1154687820
Name
Amanda A. Westlake
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
270261 MA
Self-reported in NPPES; status is on the state search
Practice location
11 Wilbraham Road, Springfield, MA 01109
Phone
(413) 794-3710
Enumerated
Apr 7, 2012
Record last updated
Jan 12, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(413) 794-9595
Medicare enrollment
Enrolled (PECOS I20170913003250); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →

Also registered at 11 Wilbraham Road

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Stephen Akinfenwa, MDInternal Medicine Physician1023750304
  2. Sudeep Aulakh, M.D.Internal Medicine Physician1043217318
  3. Samuel Borden, MDInternal Medicine Physician1427088137
  4. Brian Bourgeault, PAMedical Physician Assistant1962651604
  5. Benjamin Bovell-Ammon, MD, MPHAddiction Medicine (Preventive Medicine) Physician1477084622
  6. Booker Bush, M.D.Internal Medicine Physician1841303435

Verify Amanda A. Westlake in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 270261    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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2.2 times the Medicare Part D claims of the average internal medicine physician in 2024

6,848 Medicare Part D claims for 254 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims. 137 claims were for opioids.

  1. Amanda Westlake6,848
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium489 claims
  2. Omeprazole304 claims
  3. Albuterol Sulfate Hfa251 claims
  4. Biktarvy209 claims
  5. Gabapentin207 claims
  6. Amlodipine Besylate202 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: $18.09

1 payment: education; the largest payer was Merck Sharp & Dohme LLC. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Amanda Westlake$18.09
  2. Specialty average$1,303.06

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

  1. Baystate Medical Practices IncSpringfield, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Amanda A. Westlake among 6,825 internal medicine physician records in Massachusetts

Amanda A. Westlake, M.D. is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 67% of them.

  • NPI issued2012 · 67% of these records are older, 30% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2012 · median 2004 among the 4,103 with a school on file
  • Record last updated2021 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

282 internal medicine physician records list a practice address in Springfield

They are 282 of the 8,553 NPPES records with a practice address in Springfield, and 6,825 internal medicine physician records in Massachusetts.

All 6,825 in Massachusetts → Every provider in Springfield → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Sudeep Aulakh, M.D.Springfield, MA 011091043217318
  2. Andrew Balder, MDSpringfield, MA 011091720188832
  3. Evan Benjamin, MDSpringfield, MA 011091669572939
  4. Samuel Borden, MDSpringfield, MA 011091427088137
  5. Elizabeth Boyle, MDSpringfield, MA 011091669572954
  6. Booker Bush, M.D.Springfield, MA 011091841303435
  7. Linda Canty, MDSpringfield, MA 011091639252240
  8. Peter Friedmann, MDSpringfield, MA 011091780621409

Common questions

What is Amanda A. Westlake, M.D.'s NPI number?

Amanda A. Westlake, M.D.'s National Provider Identifier (NPI) is 1154687820, issued on Apr 7, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Amanda A. Westlake, M.D. located?

The NPPES record lists a practice address at 11 Wilbraham Road, Springfield, MA, 01109. Phone: (413) 794-3710. Providers update this record themselves, so call before visiting.

How can I verify Amanda A. Westlake, M.D.'s license?

NPPES lists Massachusetts license number 270261, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Amanda A. Westlake, M.D. prescribe under Medicare Part D?

In 2024, Amanda A. Westlake, M.D. had 6,848 Medicare Part D claims for 254 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.