NPPES file of Aug 9, 2026

William Samual David, MD PHD

Neurology Physician · Boston, MA

William Samual David, MD PHD is a neurology physician with a practice address in Boston, Massachusetts, and NPI 1750333605, issued on May 17, 2006. Check the license 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
1750333605
Name
William Samual David
Credential
MD PHD
Primary taxonomy
Neurology Physician 2084N0400X
License number
35502 MN
Self-reported in NPPES; status is on the state search
Practice location
165 Cambridge St, Boston, MA 02114
Phone
(617) 643-2085
Enumerated
May 17, 2006
Record last updated
Oct 15, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(617) 726-2019
Medicaid ID
079200400 MN
Medicare enrollment
Enrolled (PECOS I20060802000556); accepts Medicare assignment
Medical or professional school
Albert Einstein College Of Medicine Of Yeshiva University, 1985
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 165 Cambridge St

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

  1. May Al-Khudhairy, B.D.SDentist1417104126
  2. Samantha BalesInternal Medicine Physician1609463652
  3. Anne Barbara, R.D., LDNRegistered Dietitian1659562494
  4. Mary Bates, RNAmbulatory Care Registered Nurse1003207549
  5. Thomas Brady, MDNuclear Medicine Physician1003898743
  6. Richard BrandoliniFamily Nurse Practitioner1104241884

Verify William Samual David in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in MedicineCheck 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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98% fewer Medicare Part D claims than the average neurology physician in 2024

32 Medicare Part D claims for 14 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 41% of claims.

  1. William David32
  2. Specialty average1,370

Most prescribed

  1. Radicava Ors11 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: $90.14

1 payment: food and beverage; the largest payer was Ucb, Inc. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. William David$90.14
  2. Specialty average$8,318.07

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).

William Samual David among 964 neurology physician records in Massachusetts

William Samual David, MD PHD is one of 964 neurology physician records with a practice address in Massachusetts. 75% 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, 57% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated1985 · median 2006 among the 612 with a school on file
  • Record last updated2012 · 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 2084N0400X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

524 neurology physician records list a practice address in Boston

They are 524 of the 41,865 NPPES records with a practice address in Boston, and 964 neurology physician records in Massachusetts.

The 8 neurology physician records with the nearest ZIP codes

  1. Cenk Ayata, MDBoston, MA 021141326038043
  2. Thomas Byrne, MDBoston, MA 021141346230075
  3. David Caplan, MD PHDBoston, MA 021141780674945
  4. Alice Flaherty, MD PHDBoston, MA 021141396735601
  5. John Growdon, MDBoston, MA 021141407846686
  6. Michael Irizarry, MDBoston, MA 021141790775237
  7. James Lehrich, MDBoston, MA 021141205826518
  8. Robert Levine, MDBoston, MA 021141154318459

Common questions

What is William Samual David, MD PHD's NPI number?

William Samual David, MD PHD's National Provider Identifier (NPI) is 1750333605, issued on May 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William Samual David, MD PHD located?

The NPPES record lists a practice address at 165 Cambridge St, Boston, MA, 02114. Phone: (617) 643-2085. Providers update this record themselves, so call before visiting.

How can I verify William Samual David, MD PHD's license?

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 William Samual David, MD PHD prescribe under Medicare Part D?

In 2024, William Samual David, MD PHD had 32 Medicare Part D claims for 14 beneficiaries; the average among neurology physician prescribers was 1,370. 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.