Mark Shwayder, M.D.
NPI 1730454810 · Pediatric Cardiology Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Shwayder, M.D. is a Pediatric Cardiology Physician provider in Los Angeles, CA (NPI 1730454810).
Provider details
- NPI number
- 1730454810
- Entity type
- Individual
- Primary specialty
- Pediatric Cardiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A164194 (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
14 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
- 2012-03-21
- Last updated
- 2019-10-24
Frequently asked questions
- What is Mark Shwayder's NPI number?
- Mark Shwayder's National Provider Identifier (NPI) is 1730454810, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Shwayder's specialty?
- Mark Shwayder is listed in the NPPES registry with a primary specialty of Pediatric Cardiology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Shwayder located?
- Mark Shwayder's practice location on file with NPPES is 4650 W Sunset Blvd, Los Angeles, CA 90027-6062.
- What is Mark Shwayder's phone number?
- The practice phone number listed in the NPPES registry for Mark Shwayder is (888) 631-2452.
- Does Mark Shwayder accept Medicare?
- Mark Shwayder is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Shwayder's NPI active?
- Yes — Mark Shwayder's NPI (1730454810) is active in the NPPES registry as of the last update on 2019-10-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.