Earl Andrew De Guzman, MD
NPI 1821432378 · Psychiatry Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Earl Andrew De Guzman, MD is a Psychiatry Physician provider in San Francisco, CA (NPI 1821432378).
Provider details
- NPI number
- 1821432378
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A132370 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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 · 30 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sertraline Hcl | 118 | 39 |
| Trazodone Hcl | 116 | 48 |
| Quetiapine Fumarate | 113 | 32 |
| Clonazepam | 86 | 23 |
| Lorazepam | 75 | 29 |
| Buspirone Hcl | 68 | 21 |
| Gabapentin | 59 | 13 |
Practice location
Mailing address
Additional practice locations (2)
- 109 W 27th St Rm 5sNew York, NY 10001-6208Phone: (917) 634-5311Fax: (888) 815-3583
- 3223 S Loop 289Suite 600 (private Office 630)Lubbock, TX 79423-1337Phone: (833) 351-8255Fax: (888) 815-3583
Registry dates
- Enumerated
- 2013-04-25
- Last updated
- 2025-11-04
- Certified
- 2025-11-04
Frequently asked questions
- What is Earl Andrew De Guzman's NPI number?
- Earl Andrew De Guzman's National Provider Identifier (NPI) is 1821432378, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Earl Andrew De Guzman's specialty?
- Earl Andrew De Guzman is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Earl Andrew De Guzman located?
- Earl Andrew De Guzman's practice location on file with NPPES is 100 Pine St, San Francisco, CA 94111-5102.
- What is Earl Andrew De Guzman's phone number?
- The practice phone number listed in the NPPES registry for Earl Andrew De Guzman is (833) 351-8255.
- Does Earl Andrew De Guzman accept Medicare?
- Earl Andrew De Guzman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Earl Andrew De Guzman's NPI active?
- Yes — Earl Andrew De Guzman's NPI (1821432378) is active in the NPPES registry as of the last update on 2025-11-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.