Peggy Guey-Chi Chen, MD
Pediatrics Physician · New Haven, CT
Peggy Guey-Chi Chen, MD is a pediatrics physician with a practice address in New Haven, Connecticut, and NPI 1780848796, issued on Jul 18, 2008. Check the license (Connecticut 045705, as entered in NPPES) on the Connecticut Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Peggy Guey-Chi Chen
- Credential
- MD
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- 045705 CT
Self-reported in NPPES; status is on the state search - Practice location
- 20 York Street, New Haven, CT 06510
- Phone
- (203) 688-4242
- Enumerated
- Jul 18, 2008
- Record last updated
- Jul 18, 2008 (not updated in 18 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 1,043 in Connecticut → Look up another NPI →
Also registered at 20 York Street
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Verify Peggy Guey-Chi Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 045705Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Peggy Guey-Chi Chen among 1,043 pediatrics physician records in Connecticut
Peggy Guey-Chi Chen, MD is one of 1,043 pediatrics physician records with a practice address in Connecticut. 32% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2008, is newer than 63% of them.
- NPI issued2008 · 63% of these records are older, 33% newer
- In a Medicare fileNo · 32% of these records are
- In the CMS Doctors and Clinicians fileNo · 9% of these records are
- Record last updated2008 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
161 pediatrics physician records list a practice address in New Haven
They are 161 of the 9,793 NPPES records with a practice address in New Haven, and 1,043 pediatrics physician records in Connecticut. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,043 in Connecticut → Every provider in New Haven → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Adam Berkwitt, M.D.New Haven, CT 065101376720961
- James Dodington, MDNew Haven, CT 065101629380985
- Beth Emerson, M.D.New Haven, CT 065101093999302
- Mary Garibaldi, M.D.New Haven, CT 065101629100086
- David Hersh, MDNew Haven, CT 065101275516932
- Mark Hommel, MDNew Haven, CT 065101053394064
- Paul McCarthy, MDNew Haven, CT 065101962485185
- Erin Nozetz, M.D.New Haven, CT 065101538396353
Common questions
What is Peggy Guey-Chi Chen, MD's NPI number?
Peggy Guey-Chi Chen, MD's National Provider Identifier (NPI) is 1780848796, issued on Jul 18, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Peggy Guey-Chi Chen, MD located?
The NPPES record lists a practice address at 20 York Street, New Haven, CT, 06510. Phone: (203) 688-4242. Providers update this record themselves, so call before visiting.
How can I verify Peggy Guey-Chi Chen, MD's license?
NPPES lists Connecticut license number 045705, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.