William Nabong
Specialist · La Crescenta, CA
William Nabong is a specialist with a practice address in La Crescenta, California, and NPI 1407246440, issued on Jan 29, 2015. Check the license (California AT9718, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Nabong
- Primary taxonomy
- Specialist 174400000X
- License number
- AT9718 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3049 Montrose Ave Apt 37, La Crescenta, CA 91214
- Phone
- (818) 288-0042
- Enumerated
- Jan 29, 2015
- Record last updated
- Jan 29, 2015 (not updated in 11 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest specialist records → All 5,749 in California → Look up another NPI →
Verify William Nabong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license AT9718Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William Nabong among 5,749 specialist records in California
William Nabong is one of 5,749 specialist records with a practice address in California. 30% 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 2015, is newer than 75% of them.
- NPI issued2015 · 75% of these records are older, 23% newer
- In a Medicare fileNo · 30% of these records are
- In the CMS Doctors and Clinicians fileNo · 19% of these records are
- Record last updated2015 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
3 specialist records list a practice address in La Crescenta
They are 3 of the 232 NPPES records with a practice address in La Crescenta, and 5,749 specialist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 5,749 in California → Every provider in La Crescenta → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Jose FloridaLa Crescenta, CA 912141356731533
- Robert Greenburg, M.D.La Crescenta, CA 912141811909641
- Alan Green, M.D., F.A.A.A.I.Glendale, CA 912081609907732
- Steven Hartford, M.D.Glendale, CA 912081215904099
- Kathryn Iwata, M.D.Glendale, CA 912081235106196
- Stanton Joe, M.D.Glendale, CA 912081255494159
- Leslie Korostoff, MDGlendale, CA 912081417096959
- Kerri Parks, M.D.Glendale, CA 912081104893775
Common questions
What is William Nabong's NPI number?
William Nabong's National Provider Identifier (NPI) is 1407246440, issued on Jan 29, 2015. An NPI identifies a provider in billing; it is not a license.
Where is William Nabong located?
The NPPES record lists a practice address at 3049 Montrose Ave Apt 37, La Crescenta, CA, 91214. Phone: (818) 288-0042. Providers update this record themselves, so call before visiting.
How can I verify William Nabong's license?
NPPES lists California license number AT9718, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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. 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.