1. Home
  2. Directory
  3. California
  4. Roseville
  5. Specialist
  6. NPI Profile

ALAN A SEMION M D INC
NPI 1720380637
Specialist in Roseville, CA

Active since November 29, 2010
729 SUNRISE AVENUE, SUITE 700, ROSEVILLE, CA 95661(916) 782-7546(916) 782-1596 Get Directions Write a Review

NPPES record last updated: November 29, 2010. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Alan A Semion M D Inc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ALAN A SEMION M D INC (NPI 1720380637) is a healthcare organization registered as a specialist in Roseville, California and active in the NPI registry since November 2010. The organization lists Alan Alexander Semion, Owner/operator, as its authorized official.

NPPES Registry Identity

NPI1720380637
Entity TypeOrganization
Primary Taxonomy174400000X
Legal Business NameALAN A SEMION M D INC
Location Address729 SUNRISE AVENUE, SUITE 700Roseville, CA 95661-4565
Mailing Address729 Sunrise Avenue, Suite 700Roseville, CA 95661-4565 · (916) 782-7546 · Fax (916) 782-1596
Phone(916) 782-7546
Fax(916) 782-1596
Organization SubpartNo
Authorized OfficialAlan Alexander SemionOwner/operator · (916) 782-7546
Enumeration DateNovember 29, 2010
✔ NPI 1720380637 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers
Taxonomy Code174400000X
License✔ Licensed in CA · C315380
Definition
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
729 SUNRISE AVENUE, Roseville, CA 95661
Open in Google Maps ↗

Other Identifiers 1

Medicare UPINA34608CA

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Alan A Semion M D Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Alan A Semion M D Inc, which bills Medicare for the services this clinician delivers.

Clinician (1)

Alan Semion, MD
Dermatology
NPI 1235131301
729 SUNRISE AVE #700
Roseville, CA 95661
(916) 782-7546
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Alan A Semion M D Inc's NPI number?

The NPI number for Alan A Semion M D Inc is 1720380637. It was assigned to this organization in the NPPES registry on November 29, 2010.

Where is Alan A Semion M D Inc located?

Alan A Semion M D Inc is located at 729 Sunrise Avenue Suite 700, Roseville, CA 95661. The listed phone number is (916) 782-7546.

What is Alan A Semion M D Inc's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Is Alan A Semion M D Inc enrolled in Medicare?

Yes. Alan A Semion M D Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Alan A Semion M D Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Dermatology) reassigns their Medicare billing to Alan A Semion M D Inc. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Alan A Semion M D Inc was last updated on November 29, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.