NPPES file of Aug 9, 2026

Daniel Williams Rust, M.D.

Anatomic Pathology & Clinical Pathology Physician · Boston, MA

Daniel Williams Rust, M.D. is an anatomic pathology & clinical pathology physician with a practice address in Boston, Massachusetts, and NPI 1821273376, issued on Jan 3, 2008. Check the license (Massachusetts 222486, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1821273376
Name
Daniel Williams Rust
Credential
M.D.
Primary taxonomy
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
License number
222486 MA
Self-reported in NPPES; status is on the state search
Practice location
750 Washington St, Boston, MA 02111
Phone
(617) 636-5826
Enumerated
Jan 3, 2008
Record last updated
Jan 3, 2008 (not updated in 18 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20041202000195); accepts Medicare assignment
Medical or professional school
Boston University School Of Medicine, 2002
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 750 Washington St

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

  1. Maureen Abbott, NPAdult Health Nurse Practitioner1457591638
  2. Paul Abourjaily, PHARMDPharmacotherapy Pharmacist1255337044
  3. Lori Abrahamian, M.D.Anesthesiology Physician1528012192
  4. Mary Ahern, PMHCNS-BCPsychiatric/Mental Health Clinical Nurse Specialist1619137742
  5. Ghada Al Mubarak, M.D.Surgery Physician1407034911
  6. Abeer Al-Naqbi, M.D.Obstetrics & Gynecology Physician1043426919

Verify Daniel Williams Rust 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 222486
    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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Bills Medicare through one group practice

  1. Pratt Pathology Associates IncBoston, MA

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

Daniel Williams Rust among 542 anatomic pathology & clinical pathology physician records in Massachusetts

Daniel Williams Rust, M.D. is one of 542 anatomic pathology & clinical pathology physician records with a practice address in Massachusetts. 57% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 45% of them.

  • NPI issued2008 · 45% of these records are older, 46% newer
  • In a Medicare fileYes · 57% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated2002 · median 2004 among the 305 with a school on file
  • Record last updated2008 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0102X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anatomic Pathology & Clinical Pathology Physician providers in Massachusetts

There are 542 anatomic pathology & clinical pathology physician records in Massachusetts.

The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes

  1. Tariq Al-Zaid, M.D.Boston, MA 021111649455965
  2. Masha Bilic, MDBoston, MA 021111376581595
  3. Haiying Chen, M.D.Boston, MA 021111679843015
  4. Nada Farhat, M.D., MA, MPHBoston, MA 021111124330253
  5. Tracie Gardner, M.D.Boston, MA 021111912143835
  6. Tee Lang, M.D.Boston, MA 021111275718587
  7. Roy LeeBoston, MA 021111215113105
  8. Erin Morris, M.D.Boston, MA 021111427255322

Common questions

What is Daniel Williams Rust, M.D.'s NPI number?

Daniel Williams Rust, M.D.'s National Provider Identifier (NPI) is 1821273376, issued on Jan 3, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Daniel Williams Rust, M.D. located?

The NPPES record lists a practice address at 750 Washington St, Boston, MA, 02111. Phone: (617) 636-5826. Providers update this record themselves, so call before visiting.

How can I verify Daniel Williams Rust, M.D.'s license?

NPPES lists Massachusetts license number 222486, 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.

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.