Siamak Milanchi, MD Inc.
NPI 1093006223 · Colon & Rectal Surgery Physician · Irvine, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Siamak Milanchi, MD Inc. is a Colon & Rectal Surgery Physician organization in Irvine, CA (NPI 1093006223).
Provider details
- NPI number
- 1093006223
- Entity type
- Organization
- Primary specialty
- Colon & Rectal Surgery PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Siamak Milanchi, Dr.(949) 429-0268
- License
- A92723 (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
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
- 2011-04-21
- Last updated
- 2012-10-22
Frequently asked questions
- What is Siamak Milanchi, MD Inc.'s NPI number?
- Siamak Milanchi, MD Inc.'s National Provider Identifier (NPI) is 1093006223, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Siamak Milanchi, MD Inc.?
- Siamak Milanchi, MD Inc. is classified in the NPPES registry as Colon & Rectal Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Siamak Milanchi, MD Inc. located?
- Siamak Milanchi, MD Inc.'s practice location on file with NPPES is 16300 Sand Canyon Ave, Irvine, CA 92618-3711.
- What is Siamak Milanchi, MD Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Siamak Milanchi, MD Inc. is (949) 429-0268.
- Does Siamak Milanchi, MD Inc. accept Medicare?
- Siamak Milanchi, MD 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 Siamak Milanchi, MD Inc.?
- The authorized official listed on Siamak Milanchi, MD Inc.'s NPPES record is Siamak Milanchi, Dr.. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Siamak Milanchi, MD Inc.'s NPI active?
- Yes — Siamak Milanchi, MD Inc.'s NPI (1093006223) is active in the NPPES registry as of the last update on 2012-10-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.