William K. Chiang, MD
Emergency Medical Services (Emergency Medicine) Physician · New York, NY
William K. Chiang, MD is an emergency medical services (emergency medicine) physician with a practice address in New York, New York, and NPI 1558423954, issued on Dec 14, 2006. Check the license (New York 164853, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- William K. Chiang
- Credential
- MD
- Primary taxonomy
- Emergency Medical Services (Emergency Medicine) Physician 207PE0004X
- License number
- 164853 NY
Self-reported in NPPES; status is on the state search - Practice location
- 550 1St Ave, New York, NY 10016
- Phone
- (212) 263-3293
- Enumerated
- Dec 14, 2006
- Record last updated
- Mar 9, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (212) 263-3522
- Entity
- Type 1 · individual
8 nearest emergency medical services (emergency medicine) physician records → All 169 in New York → Look up another NPI →
Also registered at 550 1St Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William K. Chiang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 164853Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average emergency medical services (emergency medicine) physician in 2024
15 Medicare Part D claims for 12 beneficiaries, against an average of 292 among the 1,653 providers of this specialty who prescribed in Part D.
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.
Industry payments in 2024: $43.92
2 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 489 providers of this specialty with any payment received $337.59 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
William K. Chiang among 169 emergency medical services (emergency medicine) physician records in New York
William K. Chiang, MD is one of 169 emergency medical services (emergency medicine) physician records with a practice address in New York. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 33% newer
- In a Medicare fileYes · 64% of these records are
- In the CMS Doctors and Clinicians fileNo · 38% of these records are
- Record last updated2021 · 75% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207PE0004X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medical Services (Emergency Medicine) Physician providers in New York
There are 169 emergency medical services (emergency medicine) physician records in New York.
All 169 in New York → Every provider in New York → Emergency Medical Services (Emergency Medicine) Physician nationwide →
The 8 emergency medical services (emergency medicine) physician records with the nearest ZIP codes
- Ami Dave, M.D.New York, NY 100161255326336
- Curt Dill, M.D.New York, NY 100161720073802
- Jessica Foltin, M.D.New York, NY 100161669465332
- William Goldberg, M.D.New York, NY 100161912990698
- Robert Hessler, M.D.New York, NY 100161538152202
- Susan Hirsch, M.D.New York, NY 100161710976808
- Robert Hoffman, M.D.New York, NY 100161346239449
- Behdad Jamshahi, M.D.New York, NY 100161073508156
Common questions
What is William K. Chiang, MD's NPI number?
William K. Chiang, MD's National Provider Identifier (NPI) is 1558423954, issued on Dec 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William K. Chiang, MD located?
The NPPES record lists a practice address at 550 1St Ave, New York, NY, 10016. Phone: (212) 263-3293. Providers update this record themselves, so call before visiting.
How can I verify William K. Chiang, MD's license?
NPPES lists New York license number 164853, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William K. Chiang, MD prescribe under Medicare Part D?
In 2024, William K. Chiang, MD had 15 Medicare Part D claims for 12 beneficiaries; the average among emergency medical services (emergency medicine) physician prescribers was 292. Part D covers Medicare prescriptions only.
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.