Zacharia Isaac, MD
Pain Medicine (Physical Medicine & Rehabilitation) Physician · Boston, MA
Zacharia Isaac, MD is a pain medicine (physical medicine & rehabilitation) physician with a practice address in Boston, Massachusetts, and NPI 1760460828, issued on Jan 8, 2006. Check the license (Massachusetts 214568, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Zacharia Isaac
- Credential
- MD
- Primary taxonomy
- Pain Medicine (Physical Medicine & Rehabilitation) Physician 2081P2900X
- License number
- 214568 MA
Self-reported in NPPES; status is on the state search - Practice location
- 125 Nashua St, Boston, MA 02114
- Phone
- (617) 573-2188
- Enumerated
- Jan 8, 2006
- Record last updated
- Oct 28, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicaid ID
- 0173991 MA
- Medicare enrollment
- Enrolled (PECOS I20080709000381); accepts Medicare assignment
- Medical or professional school
- Jefferson Medical College Of Thomas Jefferson University, 1996
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 125 Nashua St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jason Arnone, OTR/LOccupational Therapist1366688376
- Teresa Baker, DPTPhysical Therapist1467621896
- Kaaren Bekken, PHDPsychologist1235129842
- David Biondi, DOPain Medicine Physician1629068713
- Randie Black-Schaffer, MDPhysical Medicine & Rehabilitation Physician1225010515
- Meghan Caldwell, LICSWClinical Social Worker1437527488
Verify Zacharia Isaac in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 214568Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
32% more Medicare Part D claims than the average pain medicine (physical medicine & rehabilitation) physician in 2024
1,953 Medicare Part D claims for 485 beneficiaries, against an average of 1,479 among the 1,457 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims. 118 claims were for opioids.
Most prescribed
- Duloxetine Hcl791 claims
- Gabapentin393 claims
- Baclofen220 claims
- Tizanidine Hcl83 claims
- Meloxicam70 claims
- Tramadol Hcl68 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: $202.20
1 payment: food and beverage; the largest payer was Saluda Medical Americas, Inc. The 1,126 providers of this specialty with any payment received $2,193.30 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 3 group practices
- Brigham And Womens Physicians Organization IncJamaica Plain, MA
- Massachusetts General Physicians Organization IncJamaica Plain, MA
- Ptsma IncPawcatuck, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Pain Medicine (Physical Medicine & Rehabilitation) Physician providers in Massachusetts
There are 30 pain medicine (physical medicine & rehabilitation) physician records in Massachusetts.
Other pain medicine (physical medicine & rehabilitation) physician records in Massachusetts
- Joseph Audette, MDBoston, MA1992789911
- Sharon Bassi, MDBrighton, MA1033388277
- Madhur Batra, MDBoston, MA1831726314
- Karyn Carey, P.T.Medford, MA1891934352
- Joseph Doerr, M.D.Somerset, MA1427052703
- David Gallacher, MDBoston, MA1437757663
- David Grygier, M.D.Pittsfield, MA1821090119
- Adam Harris, M.D.Boston, MA1396192142
- Benjamin Henkle, M.D.Lowell, MA1669630083
- Wilfred Hynes, M.D.Boston, MA1811950413
Common questions
What is Zacharia Isaac, MD's NPI number?
Zacharia Isaac, MD's National Provider Identifier (NPI) is 1760460828, issued on Jan 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Zacharia Isaac, MD located?
The NPPES record lists a practice address at 125 Nashua St, Boston, MA, 02114. Phone: (617) 573-2188. Providers update this record themselves, so call before visiting.
How can I verify Zacharia Isaac, MD's license?
NPPES lists Massachusetts license number 214568, 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 Zacharia Isaac, MD prescribe under Medicare Part D?
In 2024, Zacharia Isaac, MD had 1,953 Medicare Part D claims for 485 beneficiaries; the average among pain medicine (physical medicine & rehabilitation) physician prescribers was 1,479. 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.