Toby Chai, M.D.
Urology Physician · Boston, MA
Toby Chai, M.D. is a urology physician with a practice address in Boston, Massachusetts, and NPI 1265548697, issued on Aug 21, 2006. Check the license (Massachusetts 280790, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Toby Chai
- Credential
- M.D.
- Primary taxonomy
- Urology Physician 208800000X
- License number
- 280790 MA
Self-reported in NPPES; status is on the state search - Practice location
- 725 Albany St, Suite 3B, Boston, MA 02118
- Phone
- (617) 638-8485
- Enumerated
- Aug 21, 2006
- Record last updated
- Feb 11, 2026
- Fax
- (617) 414-7372
- Medicaid IDs
- 110158286A MA
3120979 NH - Medicare enrollment
- Enrolled (PECOS I20191119003063); accepts Medicare assignment
- Medical or professional school
- Indiana University School Of Medicine, 1989
- Entity
- Type 1 · individual
Also registered at 725 Albany St, Suite 3B
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gianpaolo Carpinito, MDUrology Physician1609337153
- Robert Deshane, PAPhysician Assistant1861606220
- Elizabeth Encarnacion, PAPhysician Assistant1720878531
- Mark Katz, MDUrology Physician1437390507
- Kelly McDonagh, PA-CPhysician Assistant1992566137
- Robert Oates, M.D.Urology Physician1275505000
Verify Toby Chai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 280790Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% fewer Medicare Part D claims than the average urology physician in 2024
1,212 Medicare Part D claims for 295 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Tamsulosin Hcl332 claims
- Finasteride217 claims
- Myrbetriq178 claims
- Oxybutynin Chloride Er120 claims
- Alfuzosin Hcl Er71 claims
- Methenamine Hippurate53 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: $14,666.35
4 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 9,340 providers of this specialty with any payment received $3,800.04 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 2 group practices
- Bmc Affiliated Physicians, Inc.Brighton, MA
- Boston University Medical Center Urologists, Inc.Boston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Urology Physician providers in Massachusetts
There are 377 urology physician records in Massachusetts.
Other urology physician records in Massachusetts
- Joseph Adolph, MDMarlboro, MA1700883535
- Abdulsalam Albalawi, MDChestnut Hill, MA1487087375
- Mehrdad AlemozaffarBoston, MA1376749861
- Richard Alexander, M.D.Greenfield, MA1497762884
- Farshid Alizadeh, MDBrighton, MA1619608577
- Christopher Allard, MDBoston, MA1629486022
- Richard Altman, MDChelmsford, MA1134199748
- Joshua Altschuler, MDWorcester, MA1003471962
- Kevin Asher, MDSpringfield, MA1578733457
- Philip Ayvazian, MDWorcester, MA1487654984
Common questions
What is Toby Chai, M.D.'s NPI number?
Toby Chai, M.D.'s National Provider Identifier (NPI) is 1265548697, issued on Aug 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Toby Chai, M.D. located?
The NPPES record lists a practice address at 725 Albany St, Suite 3B, Boston, MA, 02118. Phone: (617) 638-8485. Providers update this record themselves, so call before visiting.
How can I verify Toby Chai, M.D.'s license?
NPPES lists Massachusetts license number 280790, 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 Toby Chai, M.D. prescribe under Medicare Part D?
In 2024, Toby Chai, M.D. had 1,212 Medicare Part D claims for 295 beneficiaries; the average among urology physician prescribers was 1,340. 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.