Sunny Day Medicine, Inc.
NPI 1639755275 · Internal Medicine Physician · Torrance, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sunny Day Medicine, Inc. is a Internal Medicine Physician organization in Torrance, CA (NPI 1639755275).
Provider details
- NPI number
- 1639755275
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Victor Lin, Ceo(626) 688-6852
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
5 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-03-23
- Last updated
- 2021-07-29
- Certified
- 2021-03-31
Frequently asked questions
- What is Sunny Day Medicine, Inc.'s NPI number?
- Sunny Day Medicine, Inc.'s National Provider Identifier (NPI) is 1639755275, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Sunny Day Medicine, Inc.?
- Sunny Day Medicine, Inc. is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sunny Day Medicine, Inc. located?
- Sunny Day Medicine, Inc.'s practice location on file with NPPES is 4201 Torrance Blvd #420, Torrance, CA 90503.
- What is Sunny Day Medicine, Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Sunny Day Medicine, Inc. is (626) 688-6852.
- Does Sunny Day Medicine, Inc. accept Medicare?
- Sunny Day Medicine, Inc. is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Sunny Day Medicine, Inc.?
- The authorized official listed on Sunny Day Medicine, Inc.'s NPPES record is Victor Lin, Ceo. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Sunny Day Medicine, Inc.'s NPI active?
- Yes — Sunny Day Medicine, Inc.'s NPI (1639755275) is active in the NPPES registry as of the last update on 2021-07-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.