Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John Takajara Chiang, M.D.

Psychiatry Physician in Astoria, NY · enumerated 2007.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1063543692

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Registry record

Entity type Individual (Type 1)

Name Dr. John Takajara Chiang

Credential M.D.

Sex Male

Practice address 3811 Broadway, 3rd Floor Steinway Community Services, Astoria, NY, 11103

Phone (718) 726-5953

Enumeration date Mar 7, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 197794 (NY) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is John Chiang?

John Chiang is registered in NPPES with the primary taxonomy of Psychiatry Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

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Juana Edmunds Psychiatry Physician · Astoria, NY NPI 1326009291 Joe Bachner Clinical Social Worker · Astoria, NY NPI 1700100716 Charles Clarke Registered Nurse · Astoria, NY NPI 1164746954 Anastasia Chomanczuk Clinical Social Worker · Astoria, NY NPI 1437474590 Tamicka Grant Registered Nurse · Astoria, NY NPI 1033461744 Daren Campbell Registered Nurse · Astoria, NY NPI 1891166930 Wanda Sanchez Mental Health Counselor · Astoria, NY NPI 1912372566 Janet Kelly Counselor · Astoria, NY NPI 1508225327

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.