NPPES file of Aug 9, 2026

Andra Margaret Boak, DMD

General Practice Dentistry · Cambridge, MA

Andra Margaret Boak, DMD is a general practice dentistry with a practice address in Cambridge, Massachusetts, and NPI 1770627358, issued on Feb 16, 2007. Check the license (Massachusetts 21455, as entered in NPPES) with the Massachusetts board that licenses this profession; 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
1770627358
Name
Andra Margaret Boak
Credential
DMD
Primary taxonomy
General Practice Dentistry 1223G0001X
License numbers
21455 MA
3795 ME
Self-reported in NPPES; status is on the state search
Practice location
245 First St, Cambridge, MA 02142
Phone
(207) 490-6900
Enumerated
Feb 16, 2007
Record last updated
Aug 2, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(207) 490-1188
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 245 First St

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

  1. Leah BriscoeDentist1659119279
  2. Dana Burkett, DMDDentist1235510355
  3. Hakan Karaaslan, DDSEndodontics1457135816
  4. Joseph Kozikowski, M.D.General Practice Physician1811423452
  5. Alexander MagallanesDentist1801659495
  6. Shaked Navat Pelli, D.M.DDentist1154791937

Verify Andra Margaret Boak in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license 21455
    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
Find 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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76% fewer Medicare Part D claims than the average general practice dentistry in 2024

20 Medicare Part D claims for 18 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.

  1. Andra Boak20
  2. Specialty average83

Most prescribed

  1. Amoxicillin13 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.

Andra Margaret Boak among 3,489 general practice dentistry records in Massachusetts

Andra Margaret Boak, DMD is one of 3,489 general practice dentistry records with a practice address in Massachusetts. 58% 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 37% of them.

  • NPI issued2007 · 37% of these records are older, 41% newer
  • In a Medicare fileYes · 58% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2013 · 77% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

64 general practice dentistry records list a practice address in Cambridge

They are 64 of the 5,145 NPPES records with a practice address in Cambridge, and 3,489 general practice dentistry records in Massachusetts.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Gregory Kosmidis, DMDCambridge, MA 021421568645240
  2. Azim RabieiCambridge, MA 021421205547858
  3. Rosario Alvarez, D.M.DCambridge, MA 021411912301706
  4. John Ambarik, D.D.S.Somerville, MA 021431215018585
  5. Gloria Chao, D.M.D.Somerville, MA 021431073875050
  6. Jingjing ChenCambridge, MA 021411407206063
  7. Minho Choi, DDSCambridge, MA 021411891475158
  8. Zully Criado-Hedreen, D.D.S.Cambridge, MA 021411700024361

Common questions

What is Andra Margaret Boak, DMD's NPI number?

Andra Margaret Boak, DMD's National Provider Identifier (NPI) is 1770627358, issued on Feb 16, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Andra Margaret Boak, DMD located?

The NPPES record lists a practice address at 245 First St, Cambridge, MA, 02142. Phone: (207) 490-6900. Providers update this record themselves, so call before visiting.

How can I verify Andra Margaret Boak, DMD's license?

NPPES lists Massachusetts license number 21455, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Andra Margaret Boak, DMD prescribe under Medicare Part D?

In 2024, Andra Margaret Boak, DMD had 20 Medicare Part D claims for 18 beneficiaries; the average among general practice dentistry prescribers was 83. 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.