Fergus S. Ng, MD
Emergency Medicine Physician · Tustin, CA
Fergus S. Ng, MD is an emergency medicine physician with a practice address in Tustin, California, and NPI 1700806981, issued on Jul 20, 2006. Check the license (California G63694, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Fergus S. Ng
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- G63694 CA
Self-reported in NPPES; status is on the state search - Practice location
- 14662 Newport Ave, Tustin, CA 92780
- Phone
- (714) 669-2000
- Enumerated
- Jul 20, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (818) 587-2493
- Medicaid ID
- 00G636940 CA
- Medicare enrollment
- Enrolled (PECOS I20040824000647); accepts Medicare assignment
- Medical or professional school
- George Washington University School Of Medicine, 1987
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 14662 Newport Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mohamed Al-Sadek, M.D.Internal Medicine Physician1154353829
- Gilbert AlmarazAnesthesiology Physician1114022704
- Sung-Woong Kim, M.D.Pediatric Anesthesiology Physician1992927909
- Megan Macneil, RNRegistered Nurse1427724574
- Hien Nguyen, LCSWClinical Social Worker1588070767
- Kayla OrateNurse Practitioner1457234783
Verify Fergus S. Ng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G63694Check 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 medicine physician in 2024
12 Medicare Part D claims, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
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.
Bills Medicare through one group practice
- Can Emergency Physicians Medical Group IncTustin, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Fergus S. Ng among 7,751 emergency medicine physician records in California
Fergus S. Ng, MD is one of 7,751 emergency medicine physician records with a practice address in California. 81% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 60% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1987 · median 2011 among the 4,560 with a school on file
- Record last updated2007 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Tustin → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Philip Fagan, M.D.Tustin, CA 927801255335154
- Martha Herrero, MDTustin, CA 927801932269156
- Maxwell Jen, MDTustin, CA 927801154688810
- Andrew Tran, MDTustin, CA 927801669408621
- Yusaku Uchimura, MDTustin, CA 927801487670873
- Jai Ho, MDAnaheim, CA 928011396788345
- Christopher Lai, M.DAnaheim, CA 928011487670907
- Richard Oxman, M.D.Anaheim, CA 928011487704789
Common questions
What is Fergus S. Ng, MD's NPI number?
Fergus S. Ng, MD's National Provider Identifier (NPI) is 1700806981, issued on Jul 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Fergus S. Ng, MD located?
The NPPES record lists a practice address at 14662 Newport Ave, Tustin, CA, 92780. Phone: (714) 669-2000. Providers update this record themselves, so call before visiting.
How can I verify Fergus S. Ng, MD's license?
NPPES lists California license number G63694, 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.
How much does Fergus S. Ng, MD prescribe under Medicare Part D?
In 2024, Fergus S. Ng, MD had 12 Medicare Part D claims; the average among emergency medicine physician prescribers was 226. 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.