William Young, M.D.
NPI 1073537098 · Psychiatry Physician · Fountain Valley, CA
William Young, M.D. is a Psychiatry Physician provider in Fountain Valley, CA (NPI 1073537098).
Provider details
- NPI number
- 1073537098
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- C27892 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Desvenlafaxine Succinatebrand: Desvenlafaxine Succinate Er | 40 |
| Clonazepam | 39 |
| Quetiapine Fumarate | 33 |
| Alprazolam | 25 |
| Paroxetine Hcl | 25 |
| Lamotrigine | 14 |
| Eszopiclone | 13 |
| Duloxetine Hcl | 13 |
| Oxcarbazepine | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-26
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Young's NPI number?
- William Young's National Provider Identifier (NPI) is 1073537098, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Young's specialty?
- William Young is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is William Young located?
- William Young's practice location on file with NPPES is 11770 Warner Ave, Fountain Valley, CA 92708-2663.
- What is William Young's phone number?
- The practice phone number listed in the NPPES registry for William Young is (714) 241-8560.
- Is William Young's NPI active?
- Yes — William Young's NPI (1073537098) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.