Ping-An Tjoa, M.D.
Internal Medicine Physician · Newark, DE
Ping-An Tjoa, M.D. is an internal medicine physician with a practice address in Newark, Delaware, and NPI 1427080522, issued on Jul 7, 2006. Check the license on the Delaware Board of Medical Licensure and Discipline; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Ping-An Tjoa
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD-038577-Y PA
Self-reported in NPPES; status is on the state search - Practice location
- 111 Ferguson LN, Newark, DE 19702
- Phone
- (302) 834-1681
- Enumerated
- Jul 7, 2006
- Record last updated
- Aug 1, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (302) 834-1681
- Medicaid ID
- 00089483300 PA
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 600 in Delaware → Look up another NPI →
Verify Ping-An Tjoa in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDelaware Board of Medical Licensure and DisciplineCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Ping-An Tjoa among 600 internal medicine physician records in Delaware
Ping-An Tjoa, M.D. is one of 600 internal medicine physician records with a practice address in Delaware. 83% 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 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 68% newer
- In a Medicare fileNo · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 69% of these records are
- Record last updated2013 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
240 internal medicine physician records list a practice address in Newark
They are 240 of the 4,662 NPPES records with a practice address in Newark, and 600 internal medicine physician records in Delaware. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 600 in Delaware → Every provider in Newark → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Anne Aldridge, MDNewark, DE 197021962586750
- Ijaz Anwar, M.D.Newark, DE 197021477971612
- Curt Blacklock, DONewark, DE 197021467465450
- Samir Jain, M.D.Newark, DE 197021881836476
- Shilpa Mehta, MDNewark, DE 197021447236773
- Timothy O'Donnell, MDNewark, DE 197021770502809
- Rene Badillo, M.D.Bear, DE 197011487651741
- Maricar Belicena-Badillo, M.D.Bear, DE 197011750388872
Common questions
What is Ping-An Tjoa, M.D.'s NPI number?
Ping-An Tjoa, M.D.'s National Provider Identifier (NPI) is 1427080522, issued on Jul 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ping-An Tjoa, M.D. located?
The NPPES record lists a practice address at 111 Ferguson LN, Newark, DE, 19702. Phone: (302) 834-1681. Providers update this record themselves, so call before visiting.
How can I verify Ping-An Tjoa, M.D.'s license?
Search the Delaware Board of Medical Licensure and Discipline at https://delpros.delaware.gov/OH_VerifyLicense. 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.