Peggy Kwun, MD
NPI 1396774436 · Psychiatry Physician · San Rafael, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Peggy Kwun, MD is a Psychiatry Physician provider in San Rafael, CA (NPI 1396774436).
Provider details
- NPI number
- 1396774436
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- G80768 (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 · 38 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lorazepam | 191 | 76 |
| Trazodone Hcl | 117 | 54 |
| Sertraline Hcl | 107 | 45 |
| Duloxetine Hcl | 91 | 34 |
| Escitalopram Oxalate | 89 | 38 |
| Bupropion Hclbrand: Bupropion Xl | 86 | 40 |
| Clonazepam |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-01
- Last updated
- 2021-12-03
Frequently asked questions
- What is Peggy Kwun's NPI number?
- Peggy Kwun's National Provider Identifier (NPI) is 1396774436, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peggy Kwun's specialty?
- Peggy Kwun is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Peggy Kwun located?
- Peggy Kwun's practice location on file with NPPES is 111 Smith Ranch Rd, San Rafael, CA 94903-1939.
- What is Peggy Kwun's phone number?
- The practice phone number listed in the NPPES registry for Peggy Kwun is (415) 491-3000.
- Does Peggy Kwun accept Medicare?
- Peggy Kwun is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Peggy Kwun's NPI active?
- Yes — Peggy Kwun's NPI (1396774436) is active in the NPPES registry as of the last update on 2021-12-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.