NPPES file of Aug 9, 2026

Bonnie Cao, MD

Hospitalist Physician · Milton, MA

Bonnie Cao, MD is a hospitalist physician with a practice address in Milton, Massachusetts, and NPI 1801357397, issued on Mar 27, 2019. Check the license (Massachusetts 1015139, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1801357397
Name
Bonnie Cao
Credential
MD
Primary taxonomy
Hospitalist Physician 208M00000X
License number
1015139 MA
Self-reported in NPPES; status is on the state search
Practice location
199 Reedsdale RD, Milton, MA 02186
Phone
(617) 696-4600
Enumerated
Mar 27, 2019
Record last updated
Feb 16, 2024
Medicare enrollment
Enrolled (PECOS I20230727000942); accepts Medicare assignment
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 199 Reedsdale RD

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

  1. Claudia Ambrus, CRNACertified Registered Nurse Anesthetist1811962905
  2. Joan Botelho, CRNACertified Registered Nurse Anesthetist1265676365
  3. Joshua Brody, M.D.Emergency Medicine Physician1932429016
  4. Bahinah CallahanAnesthesiology Physician1154958023
  5. Lori Cetrino, CRNACertified Registered Nurse Anesthetist1164470498
  6. Kelly Champion, MPAS, PA-CPhysician Assistant1578836219

Verify Bonnie Cao 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 1015139
    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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98% fewer Medicare Part D claims than the average hospitalist physician in 2024

12 Medicare Part D claims, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.

  1. Bonnie Cao12
  2. Specialty average521

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.

Bills Medicare through 2 group practices

  1. Associated Physicians OF Harvard Medical Faculty Physicians AT Beth ISMilton, MA
  2. Harvard Medical Faculty Phys AT Beth Israel Deaconess Med Ctr IncBoston, MA

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

11 hospitalist physician records list a practice address in Milton

They are 11 of the 445 NPPES records with a practice address in Milton, and 525 hospitalist physician records in Massachusetts.

Other hospitalist physician records in Massachusetts

  1. Peter Abaskhroun, MDFall River, MA1740786391
  2. Ramla Abbas, M.D.Plymouth, MA1982193785
  3. Ramy Abu Sukheila, M.DFall River, MA1538548706
  4. Lopamudra Acharya, MDNeedham, MA1144513763
  5. Aruna Adaikkalam, MDSpringfield, MA1861403875
  6. Sofia Adamidi, MDFall River, MA1528553229
  7. Tsiani Adopleh, DOBurlington, MA1740920354
  8. Arielle Adrien-Jean, M.D.New Bedford, MA1386691160
  9. Nikita AgarwalBoston, MA1467183269
  10. Muneer Ahmad, MDLowell, MA1902151301

Common questions

What is Bonnie Cao, MD's NPI number?

Bonnie Cao, MD's National Provider Identifier (NPI) is 1801357397, issued on Mar 27, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Bonnie Cao, MD located?

The NPPES record lists a practice address at 199 Reedsdale RD, Milton, MA, 02186. Phone: (617) 696-4600. Providers update this record themselves, so call before visiting.

How can I verify Bonnie Cao, MD's license?

NPPES lists Massachusetts license number 1015139, 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 Bonnie Cao, MD prescribe under Medicare Part D?

In 2024, Bonnie Cao, MD had 12 Medicare Part D claims; the average among hospitalist physician prescribers was 521. 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.