J. Antonio Alarcon, MD Inc
NPI 1558502716 · Urology Physician · Montebello, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
J. Antonio Alarcon, MD Inc is a Urology Physician organization in Montebello, CA (NPI 1558502716).
Provider details
- NPI number
- 1558502716
- Entity type
- Organization
- Primary specialty
- Urology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Kathy Emerzian, Manager(714) 375-6280
- License
- A401970 (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
17 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
- 2009-03-18
- Last updated
- 2009-03-18
Frequently asked questions
- What is J. Antonio Alarcon, MD Inc's NPI number?
- J. Antonio Alarcon, MD Inc's National Provider Identifier (NPI) is 1558502716, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is J. Antonio Alarcon, MD Inc?
- J. Antonio Alarcon, MD Inc is classified in the NPPES registry as Urology Physician (Allopathic & Osteopathic Physicians).
- Where is J. Antonio Alarcon, MD Inc located?
- J. Antonio Alarcon, MD Inc's practice location on file with NPPES is 2133 W Beverly Blvd, Montebello, CA 90640-3901.
- What is J. Antonio Alarcon, MD Inc's phone number?
- The practice phone number listed in the NPPES registry for J. Antonio Alarcon, MD Inc is (323) 201-5200.
- Does J. Antonio Alarcon, MD Inc accept Medicare?
- J. Antonio Alarcon, 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 J. Antonio Alarcon, MD Inc?
- The authorized official listed on J. Antonio Alarcon, MD Inc's NPPES record is Kathy Emerzian, Manager. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is J. Antonio Alarcon, MD Inc's NPI active?
- Yes — J. Antonio Alarcon, MD Inc's NPI (1558502716) is active in the NPPES registry as of the last update on 2009-03-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.