Hossein Shayan, MD
NPI 1518270271 · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Upland, CA
Enrolled with Medicare as Practitioner - Thoracic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hossein Shayan, MD is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider in Upland, CA (NPI 1518270271).
Provider details
- NPI number
- 1518270271
- Entity type
- Individual
- Primary specialty
- Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A113605 (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
15 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
- 2010-07-22
- Last updated
- 2017-03-21
Frequently asked questions
- What is Hossein Shayan's NPI number?
- Hossein Shayan's National Provider Identifier (NPI) is 1518270271, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hossein Shayan's specialty?
- Hossein Shayan is listed in the NPPES registry with a primary specialty of Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (Allopathic & Osteopathic Physicians).
- Where is Hossein Shayan located?
- Hossein Shayan's practice location on file with NPPES is 901 San Bernardino Rd, Upland, CA 91786-4912.
- What is Hossein Shayan's phone number?
- The practice phone number listed in the NPPES registry for Hossein Shayan is (909) 579-6721.
- Does Hossein Shayan accept Medicare?
- Hossein Shayan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hossein Shayan's NPI active?
- Yes — Hossein Shayan's NPI (1518270271) is active in the NPPES registry as of the last update on 2017-03-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.