PETER R. CHAI M.D. – NPI #1316267305
Emergency Medicine

An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

Health Care Provider Taxonomy Code for Emergency Medicine

PETER CHAI is a physician located in WORCESTER, MA. NPPES has assigned the NPI number 1316267305 to PETER CHAI on June 02, 2010. It is a Type-1 NPI, indicating this NPI number is associated with an individual. With multiple taxonomy codes selected, the primary taxonomy selected by this provider is 207P00000X from the Health Care Provider Taxonomy code set, which is classified as Emergency Medicine.

The NPI profile was last updated on Feb 18, 2026. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for PETER CHAI below.

NPI Profile for
PETER R. CHAI

NPI Number
1316267305
Enumeration Date

(more than 16 years ago)
Entity Type
Type-1  Individual (Male)
Legal Name
PETER R. CHAI
Credentials
M.D.
Primary location
55 LAKE AVE N
DEPARTMENT OF EMERGENCY MEDICINE
WORCESTER, MA 01655-0002
Phone: (508) 421-1400 Fax: (508) 421-1490
1 Other location(s):
75 Francis St
Boston, MA 02115-6110
Phone: (617) 732-5500
Mailing address
PO BOX 415348
BOSTON, MA 02241-5348
Phone: Fax:
Sole Proprietor
No
Updated
Certification Date
Feb 18, 2026

Note: NPPES allows providers to attest to the accuracy of their NPI data. When a provider request any change to the NPI record, they will be able to attest to their changed NPI data, resulting in an updated certification date.

Identifiers

Identifiers for PETER CHAI

Identifiers are used to associate other provider identifiers such as Medicaid or other insurers (ie:, Blue Cross, Blue Shield, Aetna, Kaiser-Permanente, etc.), with their NPI number. These identifiers can be used in matching an NPI number to an insurer's records. However, not all providers have such numbers and not all providers choose to include them in their NPI information.

DescriptionIssuerStateIdentifier
medicaidMA110098737A
Taxonomy Code(s)

A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.

Taxonomy Classification / Specialization State License
207P00000X
- Emergency Medicine (Primary)		 RI LP01974
207PT0002X
- Emergency Medicine / Medical Toxicology		 MA 257990

The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.

Additional Information

Accepts Medicare
This provider accepts Medicare-approved amount as payment in full. The Medicare-approved amount is the total the provider can be paid. When a provider accepts the Medicare-approved amount as payment, you won't be billed for more than the Medicare deductible & coinsureance.
Medicare Ordering & Referring
Provider can:
  • Refer to Part B
  • Order Durable Medical Equipment
  • Refer to Home Health Agency
  • Order Power Mobility Devices
Affiliations
PETER CHAI is affiliated with the following medical group(s):
  • HOSPITAL
    • BRIGHAM AND WOMEN'S HOSPITAL
      75 FRANCIS STREET
      BOSTON, MA 02115
    • FAULKNER HOSPITAL-BRIGHAM AND WOMEN'S
      1153 CENTRE STREET
      BOSTON, MA 02130

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If you have an active NPI profile, your profile is required to be disclosed according to the FOIA and eFOIA. HIPAA also requires covered providers to share their NPI with other providers, health plans, clearinghouses and any entity that may need it for billing purposes.

How do I correct or change the NPI data displayed here?
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Can I hide my NPI profile from the public?
Unfortunately, No. The NPPES discloses health care provider data under the Freedom of Information Act to the public, which means anyone may request such information directly from the National Plan & Provider Enumeration System. See the complete CMS Data Dissemination Notice here.