NPPES file of Aug 9, 2026

Carolyn Arnold, MD,

Family Medicine Physician · South Boston, MA

Carolyn Arnold, MD, is a family medicine physician with a practice address in South Boston, Massachusetts, and NPI 1093104408, issued on Jan 22, 2015. Check the license (Massachusetts 287303, 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
1093104408
Name
Carolyn Arnold
Credential
MD,
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
287303 MA
Self-reported in NPPES; status is on the state search
Practice location
409 West Broadway, South Boston, MA 02127
Phone
(617) 269-7500
Enumerated
Jan 22, 2015
Record last updated
Jul 28, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20210806000529); accepts Medicare assignment
Medical or professional school
Johns Hopkins University School Of Medicine, 2018
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 409 West Broadway

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

  1. Rachel Souza, DOFamily Medicine Physician1275235657

Verify Carolyn Arnold 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 287303
    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

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61% fewer Medicare Part D claims than the average family medicine physician in 2024

1,395 Medicare Part D claims for 195 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims. 73 claims were for opioids.

  1. Carolyn Arnold1,395
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium88 claims
  2. Lisinopril59 claims
  3. Amlodipine Besylate46 claims
  4. Metoprolol Succinate41 claims
  5. Albuterol Sulfate Hfa38 claims
  6. Losartan Potassium34 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 2 group practices

  1. Boston University Family Medicine IncBoston, MA
  2. South Boston Community Health CenterSouth Boston, MA

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

Carolyn Arnold among 2,265 family medicine physician records in Massachusetts

Carolyn Arnold, 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 2015, is newer than 73% of them.

  • NPI issued2015 · 73% of these records are older, 24% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2018 · median 2006 among the 1,529 with a school on file
  • Record last updated2021 · 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).

6 family medicine physician records list a practice address in South Boston

They are 6 of the 224 NPPES records with a practice address in South Boston, and 2,265 family medicine physician records in Massachusetts.

The 8 family medicine physician records with the nearest ZIP codes

  1. Kelly BatesBoston, MA 021271558047944
  2. Isabella Brout, MDSouth Boston, MA 021271306377049
  3. Laura Goldman, M.D.South Boston, MA 021271205800455
  4. Mekkin Lynch, DOSouth Boston, MA 021271245674985
  5. Julia MacdougallBoston, MA 021271568164846
  6. Cecelia Plaehn, MDBoston, MA 021271205539038
  7. Neev Shah, MDBoston, MA 021271851040091
  8. Rachel Souza, DOSouth Boston, MA 021271275235657

Common questions

What is Carolyn Arnold, MD,'s NPI number?

Carolyn Arnold, MD,'s National Provider Identifier (NPI) is 1093104408, issued on Jan 22, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Carolyn Arnold, MD, located?

The NPPES record lists a practice address at 409 West Broadway, South Boston, MA, 02127. Phone: (617) 269-7500. Providers update this record themselves, so call before visiting.

How can I verify Carolyn Arnold, MD,'s license?

NPPES lists Massachusetts license number 287303, 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 Carolyn Arnold, MD, prescribe under Medicare Part D?

In 2024, Carolyn Arnold, MD, had 1,395 Medicare Part D claims for 195 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.