NPPES file of Aug 9, 2026

Ann Chacko, DO

Neonatal-Perinatal Medicine Physician · Boston, MA

Ann Chacko, DO is a neonatal-perinatal medicine physician with a practice address in Boston, Massachusetts, and NPI 1912469552, issued on Apr 3, 2019. Check the license on the Massachusetts Board of Registration in Medicine; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1912469552
Name
Ann Chacko
Credential
DO
Primary taxonomy
Neonatal-Perinatal Medicine Physician 2080N0001X
License number
77085-21 WI
Self-reported in NPPES; status is on the state search
Practice location
800 Washington St, Boston, MA 02111
Phone
(617) 636-5000
Enumerated
Apr 3, 2019
Record last updated
Apr 19, 2025
Medicare enrollment
Enrolled (PECOS I20250721004011); may accept Medicare assignment
Medical or professional school
University Of New England, College Of Osteo Medicine, 2019
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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8 nearest neonatal-perinatal medicine physician records → All 224 in Massachusetts → Look up another NPI →

Also registered at 800 Washington St

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

  1. Jeffrey Aalberg, MD, MPHSurgery Physician1326788027
  2. Omer Abbak, PHARMDPharmacist1114500337
  3. Aya Abdelnaser, MDStudent in an Organized Health Care Education/Training Program1770425373
  4. Marie Elise Abi Antoun, MDObstetrics & Gynecology Physician1356042626
  5. Ahmad AboalfarajSurgery Physician1538517651
  6. Tala Abu Samaan, MDStudent in an Organized Health Care Education/Training Program1376386250

Verify Ann Chacko 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

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Ann Chacko among 224 neonatal-perinatal medicine physician records in Massachusetts

Ann Chacko, DO is one of 224 neonatal-perinatal medicine physician records with a practice address in Massachusetts. 17% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2019, is newer than 95% of them.

  • NPI issued2019 · 95% of these records are older, 2% newer
  • In a Medicare fileNo · 17% of these records are
  • In the CMS Doctors and Clinicians fileYes · 11% of these records are
  • Graduated2019 · median 2006 among the 24 with a school on file
  • Record last updated2025 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080N0001X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neonatal-Perinatal Medicine Physician providers in Massachusetts

There are 224 neonatal-perinatal medicine physician records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 224 in Massachusetts → Every provider in Boston → Neonatal-Perinatal Medicine Physician nationwide →

The 8 neonatal-perinatal medicine physician records with the nearest ZIP codes

  1. Timothy Baba, M.D., PH.D.Boston, MA 021111699720094
  2. Jennifer Benjamin, M.D.Boston, MA 021111396877825
  3. Diana Bianchi, M.D.Boston, MA 021111578656690
  4. Geoffrey Binney, M.D.Boston, MA 021111811931991
  5. Mario Cordova, M.D.Boston, MA 021111548353618
  6. Jonathan Davis, M.D.Boston, MA 021111457386534
  7. Patricia Degiulio, M.D.Boston, MA 021111073538294
  8. Ivan Frantz, MDBoston, MA 021111376659573

Common questions

What is Ann Chacko, DO's NPI number?

Ann Chacko, DO's National Provider Identifier (NPI) is 1912469552, issued on Apr 3, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Ann Chacko, DO located?

The NPPES record lists a practice address at 800 Washington St, Boston, MA, 02111. Phone: (617) 636-5000. Providers update this record themselves, so call before visiting.

How can I verify Ann Chacko, DO'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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.