NPPES file of Aug 9, 2026

Tiffany Erin Chao, M.D.

Student in an Organized Health Care Education/Training Program · Boston, MA

Tiffany Erin Chao, M.D. is a student in an organized health care education/training program with a practice address in Boston, Massachusetts, and NPI 1538301338, issued on Mar 25, 2009. Check the license 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1538301338
Name
Tiffany Erin Chao
Credential
M.D.
Primary taxonomy
Student in an Organized Health Care Education/Training Program 390200000X
Practice location
55 Fruit St, Boston, MA 02114
Phone
(617) 726-2000
Enumerated
Mar 25, 2009
Record last updated
Nov 20, 2009 (not updated in 17 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20170706001424); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 55 Fruit St

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

  1. Affan Aamir, MD, PHARMD, RPHStudent in an Organized Health Care Education/Training Program1821890377
  2. Matthew AbadirAnesthesiology Physician1699120550
  3. Taimur AbbasiInternal Medicine Physician1841673522
  4. Megan Abbott, MDAnesthesiology Physician1730839333
  5. Moustafa AbdallaStudent in an Organized Health Care Education/Training Program1952046062
  6. Shadi Abdar Esfahani, MD, MPHDiagnostic Radiology Physician1497137590

Verify Tiffany Erin Chao in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this professionCheck 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
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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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89% fewer Medicare Part D claims than the average student in an organized health care education/training program in 2024

21 Medicare Part D claims for 12 beneficiaries, against an average of 185 among the 59,748 providers of this specialty who prescribed in Part D.

  1. Tiffany Chao21
  2. Specialty average185

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.

The practice group's MIPS final score for 2023 (Medicare payment program): 80.6 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score67.4
  2. Costout of 100 · 30%46.5
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. County OF Santa ClaraSan Jose, CA

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

Tiffany Erin Chao among 11,235 student in an organized health care education/training program records in Massachusetts

Tiffany Erin Chao, M.D. is one of 11,235 student in an organized health care education/training program records with a practice address in Massachusetts. 26% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 2% of them.

  • NPI issued2009 · 2% of these records are older, 96% newer
  • In a Medicare fileYes · 26% of these records are
  • In the CMS Doctors and Clinicians fileYes · 4% of these records are
  • Graduated2016 · median 2019 among the 442 with a school on file
  • Record last updated2009 · 27% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 390200000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

6,126 student in an organized health care education/training program records list a practice address in Boston

They are 6,126 of the 41,865 NPPES records with a practice address in Boston, and 11,235 student in an organized health care education/training program records in Massachusetts.

The 8 student in an organized health care education/training program records with the nearest ZIP codes

  1. Fayaz Ahmed, MDBoston, MA 021141528245024
  2. Carla Berg, MABoston, MA 021141093917817
  3. Ulrike Buhlmann, PHDBoston, MA 021141902008725
  4. Tien Do, MSBoston, MA 021141891997623
  5. Abbey Eisenhower, MABoston, MA 021141023209061
  6. Tai Katzenstein, MA, PHDBoston, MA 021141124221064
  7. Laura Knouse, PH.D.Boston, MA 021141760673719
  8. Jessica Little, N/ABoston, MA 021141083875082

Common questions

What is Tiffany Erin Chao, M.D.'s NPI number?

Tiffany Erin Chao, M.D.'s National Provider Identifier (NPI) is 1538301338, issued on Mar 25, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Tiffany Erin Chao, M.D. located?

The NPPES record lists a practice address at 55 Fruit St, Boston, MA, 02114. Phone: (617) 726-2000. Providers update this record themselves, so call before visiting.

How can I verify Tiffany Erin Chao, M.D.'s license?

Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Tiffany Erin Chao, M.D. prescribe under Medicare Part D?

In 2024, Tiffany Erin Chao, M.D. had 21 Medicare Part D claims for 12 beneficiaries; the average among student in an organized health care education/training program prescribers was 185. Part D covers Medicare prescriptions only.

What is Tiffany Erin Chao, M.D.'s MIPS final score?

The 2023 MIPS final score is 80.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.