NPPES file of Aug 9, 2026

Caroline L. Sokol, MD, PHD

Allergy & Immunology Physician · Boston, MA

Caroline L. Sokol, MD, PHD is an allergy & immunology physician with a practice address in Boston, Massachusetts, and NPI 1528295060, issued on Jun 11, 2009. Check the license (Massachusetts 254470, 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
1528295060
Name
Caroline L. Sokol
Credential
MD, PHD
Primary taxonomy
Allergy & Immunology Physician 207K00000X
License numbers
254470 MA
L-240402 MA
Self-reported in NPPES; status is on the state search
Practice location
Massachusetts General Hospital, Boston, MA 02114
Phone
(617) 726-3850
Enumerated
Jun 11, 2009
Record last updated
May 17, 2013 (not updated in 13 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20130715000469); accepts Medicare assignment
Medical or professional school
Yale University School Of Medicine, 2009
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 Massachusetts General Hospital

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

  1. Gregory Acampora, M.D.Addiction Psychiatry Physician1255431177
  2. Allison Ackerman, MDInternal Medicine Physician1285894790
  3. Marylyn Addo, MDInfectious Disease Physician1700907151
  4. Srikanth Adusumalli, MBBS, FRACPStudent in an Organized Health Care Education/Training Program1295467983
  5. Jonathan Afilalo, MDCMInternal Medicine Physician1619289584
  6. Kiran Agarwal-Harding, MDOrthopaedic Surgery Physician1003229097

Verify Caroline L. Sokol 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 254470
    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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84% fewer Medicare Part D claims than the average allergy & immunology physician in 2024

115 Medicare Part D claims for 24 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 49% of claims.

  1. Caroline Sokol115
  2. Specialty average741

Most prescribed

  1. Dupixent Syringe15 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: $9,462.20

9 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 2,496 providers of this specialty with any payment received $8,321.81 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Caroline Sokol$9,462.20
  2. Specialty average$8,321.81

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. Massachusetts General Physicians Organization IncBoston, MA

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

Caroline L. Sokol among 121 allergy & immunology physician records in Massachusetts

Caroline L. Sokol, MD, PHD is one of 121 allergy & immunology physician records with a practice address in Massachusetts. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 64% of them.

  • NPI issued2009 · 64% of these records are older, 35% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2009 · median 2003 among the 86 with a school on file
  • Record last updated2013 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Allergy & Immunology Physician providers in Massachusetts

There are 121 allergy & immunology physician records in Massachusetts.

The 8 allergy & immunology physician records with the nearest ZIP codes

  1. Aleena Banerji, MDBoston, MA 021141063495562
  2. Ohn Chow, M.D., PH.D.Boston, MA 021141447663380
  3. Jocelyn Farmer, MD, PHDBoston, MA 021141194162321
  4. Jeffrey Gelfand, MDBoston, MA 021141114917986
  5. Lynda Kabbash, MDBoston, MA 021141124006515
  6. Aidan Long, MDBoston, MA 021141841280039
  7. Mandakolathur Murali, MDBoston, MA 021141891718250
  8. Sarita Patil, MDBoston, MA 021141699839597

Common questions

What is Caroline L. Sokol, MD, PHD's NPI number?

Caroline L. Sokol, MD, PHD's National Provider Identifier (NPI) is 1528295060, issued on Jun 11, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Caroline L. Sokol, MD, PHD located?

The NPPES record lists a practice address at Massachusetts General Hospital, Boston, MA, 02114. Phone: (617) 726-3850. Providers update this record themselves, so call before visiting.

How can I verify Caroline L. Sokol, MD, PHD's license?

NPPES lists Massachusetts license number 254470, 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 Caroline L. Sokol, MD, PHD prescribe under Medicare Part D?

In 2024, Caroline L. Sokol, MD, PHD had 115 Medicare Part D claims for 24 beneficiaries; the average among allergy & immunology physician prescribers was 741. 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.