MESA PULMONARY GROUP, INC.
NPI 1821610874
Internal Medicine - Pulmonary Disease in Costa Mesa, CA
About Mesa Pulmonary Group, Inc. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MESA PULMONARY GROUP, INC. (NPI 1821610874) is a healthcare organization registered as a pulmonary disease in Costa Mesa, California and active in the NPI registry since May 2020. The organization lists Alexander J Sweidan, President/ceo, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 3
Other Identifiers 2
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mesa Pulmonary Group, Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
6Medicare enrollment records show 6 clinicians reassign Medicare billing to Mesa Pulmonary Group, Inc., which bills Medicare for the services they deliver. Of these, 3 practice at this address and 4 within 10 miles. They are listed nearest first.
Clinicians, nearest first (6)
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 Mesa Pulmonary Group, Inc.'s NPI number?
The NPI number for Mesa Pulmonary Group, Inc. is 1821610874. It was assigned to this organization in the NPPES registry on May 13, 2020.
Where is Mesa Pulmonary Group, Inc. located?
Mesa Pulmonary Group, Inc. is located at 136 Broadway, Costa Mesa, CA 92627. The listed phone number is (949) 873-5537.
What is Mesa Pulmonary Group, Inc.'s specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.
Is Mesa Pulmonary Group, Inc. enrolled in Medicare?
Yes. Mesa Pulmonary Group, Inc. is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Mesa Pulmonary Group, Inc.?
According to the CMS Revalidation Reassignment List (October 2026 release), 6 clinicians in 2 Medicare specialties reassign their Medicare billing to Mesa Pulmonary Group, 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. The largest specialties are Pulmonary Disease (5) and Critical Care (Intensivists) (1). Of these, 3 practice at this address and 4 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Mesa Pulmonary Group, Inc. was last updated on March 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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.
# Mesa Pulmonary Group, Inc. · NPI 1821610874
Pulmonary Disease organization in Costa Mesa, California. Organization record, active in the CMS NPPES registry since May 13, 2020.
## Identity
- **NPI:** 1821610874 (Entity type: Organization)
- **Enumerated:** May 13, 2020
- **Primary specialty:** Internal Medicine - Pulmonary Disease · taxonomy 207RP1001X
- **Organization subpart:** No
- **Authorized official:** Alexander Sweidan, PRESIDENT/CEO
## Practice location
- **Address:** 136 BROADWAY, Costa Mesa, CA 92627-2818
- **Phone:** (949) 873-5537 · **Fax:** (949) 837-5647
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 6 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Pulmonary Disease (5), Critical Care (Intensivists) (1); 3 practice at this address and 4 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 2, 2026
- **Other identifiers:** Other 1265494835 (CA); Other 1790181311 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1821610874) · Data from the CMS NPPES public registry.