Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Pauline Y. Chao, MD

Works at hospitals in Boston, MA · Taunton, MA · Fall River, MA · Massachusetts

Summary

Dr. Pauline Y. Chao, MD is an internal medicine doctor at 825 Washington St, Suite 110, Norwood, MA 02062. Phone: (781) 762-4199. Accepts Medicare assignment. In 2024, Pauline Y. Chao had 119 Original Medicare patients and 624 services. NPI 1073665873. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Pauline Y. Chao, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Pauline Y. Chao accept Medicare assignment?
Yes. Medicare's clinician data says Pauline Y. Chao accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Pauline Y. Chao see?
In 2024, CMS data shows 119 Original Medicare patients and 624 services for Pauline Y. Chao. This counts Original Medicare only and measures volume, not quality.
What is Pauline Y. Chao's NPI number?
1073665873. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Pauline Y. Chao, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients119
Services billed to Medicare624
Different services or procedures21
Participating Medicare providerYes
Average age of these patients78

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)311 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)68 services
  3. Telephone medical discussion with physician, 21-30 minutes (99443)37 services
  4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)35 services
  5. Advance care planning, first 30 minutes (99497)27 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Chronic kidney disease66%
  • Arthritis50%
  • Diabetes45%
  • Anxiety35%

Hospitals where Pauline Y. Chao works

Medicare's Facility Affiliation Data lists Pauline Y. Chao at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Pauline Y. Chao is enrolled with Medicare (CMS data updated October 2, 2026).

  • 825 Washington St, Suite 110Norwood, MA 02062 (781) 762‑4199
  • 825 Washington St, Suite 110Norwod, MA 02062

Specialties

Find other Internal Medicine doctors in Massachusetts →

Other internal medicine doctors in Norwood

Clinicians with the same Medicare primary specialty in Norwood, MA — not a recommendation.

All internal medicine doctors in Norwood →

Clinician information

CredentialMD
Medical schoolYale University School Of Medicine
Graduation year1976 (50 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1073665873
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians