NPPES file of Aug 9, 2026

Sandra Bliss Nelson, M.D.

Infectious Disease Physician · Boston, MA

Sandra Bliss Nelson, M.D. is an infectious disease physician with a practice address in Boston, Massachusetts, and NPI 1366589863, issued on Jan 31, 2007. Check the license (Massachusetts 231994, 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
1366589863
Name
Sandra Bliss Nelson
Credential
M.D.
Primary taxonomy
Infectious Disease Physician 207RI0200X
License number
231994 MA
Self-reported in NPPES; status is on the state search
Practice location
55 Fruit St, Boston, MA 02114
Phone
(617) 726-3816
Enumerated
Jan 31, 2007
Record last updated
Oct 8, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20070913000100); accepts Medicare assignment
Medical or professional school
Duke University School Of Medicine, 1997
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 55 Fruit St

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

  1. Affan Aamir, MD, PHARMD, RPHStudent in an Organized Health Care Education/Training Program1821890377
  2. Matthew AbadirAnesthesiology Physician1699120550
  3. Taimur AbbasiInternal Medicine Physician1841673522
  4. Megan Abbott, MDAnesthesiology Physician1730839333
  5. Moustafa AbdallaStudent in an Organized Health Care Education/Training Program1952046062
  6. Shadi Abdar Esfahani, MD, MPHDiagnostic Radiology Physician1497137590

Verify Sandra Bliss Nelson 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 231994
    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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8% fewer Medicare Part D claims than the average infectious disease physician in 2024

632 Medicare Part D claims for 111 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.

  1. Sandra Nelson632
  2. Specialty average689

Most prescribed

  1. Doxycycline Monohydrate68 claims
  2. Cefadroxil39 claims
  3. Tivicay35 claims
  4. Amoxicillin34 claims
  5. Descovy30 claims
  6. Sulfamethoxazole-Trimethoprim30 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. Massachusetts General Physicians Organization IncBoston, MA
  2. The General Hospital CorporationBoston, MA

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

Sandra Bliss Nelson among 487 infectious disease physician records in Massachusetts

Sandra Bliss Nelson, M.D. is one of 487 infectious disease physician records with a practice address in Massachusetts. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 53% of them.

  • NPI issued2007 · 53% of these records are older, 37% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated1997 · median 2003 among the 296 with a school on file
  • Record last updated2019 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Infectious Disease Physician providers in Massachusetts

There are 487 infectious disease physician records in Massachusetts.

The 8 infectious disease physician records with the nearest ZIP codes

  1. Diana Brainard, MDBoston, MA 021141093705667
  2. Joan Butterton, MDBoston, MA 021141043200157
  3. Benjamin Davis, MDBoston, MA 021141912997537
  4. Marlene Durand, MDBoston, MA 021141598756058
  5. Jay Fishman, MDBoston, MA 021141912988106
  6. Marcia Goldberg, MDBoston, MA 021141700877834
  7. Deborah Hung, MDBoston, MA 021141629068267
  8. Sabina Islam, MDBoston, MA 021141275514390

Common questions

What is Sandra Bliss Nelson, M.D.'s NPI number?

Sandra Bliss Nelson, M.D.'s National Provider Identifier (NPI) is 1366589863, issued on Jan 31, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Sandra Bliss Nelson, M.D. located?

The NPPES record lists a practice address at 55 Fruit St, Boston, MA, 02114. Phone: (617) 726-3816. Providers update this record themselves, so call before visiting.

How can I verify Sandra Bliss Nelson, M.D.'s license?

NPPES lists Massachusetts license number 231994, 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 Sandra Bliss Nelson, M.D. prescribe under Medicare Part D?

In 2024, Sandra Bliss Nelson, M.D. had 632 Medicare Part D claims for 111 beneficiaries; the average among infectious disease physician prescribers was 689. 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.