Lucy Oanh Phuong, M.D.
Pediatrics Physician · Hayward, CA
Lucy Oanh Phuong, M.D. is a pediatrics physician with a practice address in Hayward, California, and NPI 1194803940, issued on Nov 1, 2006. Check the license (California A82030, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Lucy Oanh Phuong
- Credential
- M.D.
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- A82030 CA
Self-reported in NPPES; status is on the state search - Practice location
- 27303 Sleepy Hollow Ave S, Hayward, CA 94545
- Phone
- (510) 454-1000
- Enumerated
- Nov 1, 2006
- Record last updated
- Dec 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 00A820300 CA
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 9,272 in California → Look up another NPI →
Also registered at 27303 Sleepy Hollow Ave S
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Malini Amin, MDPediatrics Physician1801095252
- Madhulika Battu, MDPediatrics Physician1245736370
- Mario Bernaba, MDNephrology Physician1205499506
- Neelam Bhalla, M.D.Nephrology Physician1639118052
- Pooja Bhoopalam, PHARMDPharmacist1871022186
- Natalie CacAllergy & Immunology Physician1205006657
Verify Lucy Oanh Phuong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A82030Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Lucy Oanh Phuong among 9,272 pediatrics physician records in California
Lucy Oanh Phuong, M.D. is one of 9,272 pediatrics physician records with a practice address in California. 31% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 56% newer
- In a Medicare fileNo · 31% of these records are
- In the CMS Doctors and Clinicians fileNo · 8% of these records are
- Record last updated2021 · 65% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
46 pediatrics physician records list a practice address in Hayward
They are 46 of the 3,993 NPPES records with a practice address in Hayward, and 9,272 pediatrics physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 9,272 in California → Every provider in Hayward → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Stacia Cronin, M.D.Hayward, CA 945451215985981
- Harry Duh, M.D.Hayward, CA 945451568540318
- Carolyn Hudson, M.D.Hayward, CA 945451114954096
- Neelesh Kenia, MDHayward, CA 945451942388707
- Marcela McNeill, M.D.Hayward, CA 945451659304368
- Smita Mohan, M.D.Hayward, CA 945451528036852
- Elaine Ong, M.D.Hayward, CA 945451053499806
- Michael Phelan, M.D.Hayward, CA 945451376621136
Common questions
What is Lucy Oanh Phuong, M.D.'s NPI number?
Lucy Oanh Phuong, M.D.'s National Provider Identifier (NPI) is 1194803940, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Lucy Oanh Phuong, M.D. located?
The NPPES record lists a practice address at 27303 Sleepy Hollow Ave S, Hayward, CA, 94545. Phone: (510) 454-1000. Providers update this record themselves, so call before visiting.
How can I verify Lucy Oanh Phuong, M.D.'s license?
NPPES lists California license number A82030, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.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.