NPPES file of Aug 9, 2026

Katherine S. Gerstle, MD

Family Medicine Physician · Springfield, MA

Katherine S. Gerstle, MD is a family medicine physician with a practice address in Springfield, Massachusetts, and NPI 1700808839, issued on Jul 25, 2006. Check the license (Massachusetts 81516, 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
1700808839
Name
Katherine S. Gerstle
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
81516 MA
Self-reported in NPPES; status is on the state search
Practice location
380 Plainfield Street, Springfield, MA 01107
Phone
(413) 794-4458
Enumerated
Jul 25, 2006
Record last updated
Feb 28, 2023
Fax
(413) 794-5131
Medicare enrollment
Enrolled (PECOS I20060403000684); accepts Medicare assignment
Medical or professional school
University Of Washington School Of Medicine, 1992
Telehealth
Offers telehealth (CMS)
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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Also registered at 380 Plainfield Street

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

  1. Trevor Bell, M.D.Family Medicine Physician1598084741
  2. Gregory Campbell, M.D.Internal Medicine Physician1497287254
  3. Charles ClevelandPharmacy Technician1023601127
  4. Lucille Passer, PA-CMedical Physician Assistant1750470878
  5. Hilda Rivera-RiveraInternal Medicine Physician1225247521

Verify Katherine S. Gerstle 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 81516
    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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64% fewer Medicare Part D claims than the average family medicine physician in 2024

1,271 Medicare Part D claims for 111 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 19 claims were for opioids.

  1. Katherine Gerstle1,271
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium55 claims
  2. Famotidine49 claims
  3. Amlodipine Besylate48 claims
  4. Gabapentin44 claims
  5. Metoprolol Succinate42 claims
  6. Fluticasone Propionate41 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

  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).

Katherine S. Gerstle among 2,265 family medicine physician records in Massachusetts

Katherine S. Gerstle, MD is one of 2,265 family medicine physician records with a practice address in Massachusetts. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.

  • NPI issued2006 · 14% of these records are older, 55% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated1992 · median 2006 among the 1,529 with a school on file
  • Record last updated2023 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Family Medicine Physician providers in Massachusetts

There are 2,265 family medicine physician records in Massachusetts.

The 8 family medicine physician records with the nearest ZIP codes

  1. Omar Abduljabar, M.D.Springfield, MA 011071770978843
  2. Trevor Bell, M.D.Springfield, MA 011071598084741
  3. Elka Cloke, M.D.Springfield, MA 011071598959249
  4. Jaai Deshpande, MDSpringfield, MA 011071679095947
  5. Leila Elysee-MittonSpringfield, MA 011071508599044
  6. Karen Hoyt, MDSpringfield, MA 011071013978097
  7. David Katz, MDSpringfield, MA 011071427069061
  8. Justin Quinlan, DOSpringfield, MA 011071124558481

Common questions

What is Katherine S. Gerstle, MD's NPI number?

Katherine S. Gerstle, MD's National Provider Identifier (NPI) is 1700808839, issued on Jul 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Katherine S. Gerstle, MD located?

The NPPES record lists a practice address at 380 Plainfield Street, Springfield, MA, 01107. Phone: (413) 794-4458. Providers update this record themselves, so call before visiting.

How can I verify Katherine S. Gerstle, MD's license?

NPPES lists Massachusetts license number 81516, 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 Katherine S. Gerstle, MD prescribe under Medicare Part D?

In 2024, Katherine S. Gerstle, MD had 1,271 Medicare Part D claims for 111 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.