MICHAEL H. LOWENSTEIN MD A PROFESSIONAL MEDICAL CORPORATION
NPI 1346436425
Anesthesiology - Pain Medicine in Santa Ana, CA

Q: What is Michael H. Lowenstein MD A Professional Medical Corporation's specialty?

The primary specialty registered for this NPI is Anesthesiology, specializing in Pain Medicine, with taxonomy code 207LP2900X.

Active since September 21, 2007

1901 E 4TH ST, SUITE 210, SANTA ANA, CA 92705(714) 542-5999(714) 475-6991 Get Directions Write a Review

NPPES record last updated: July 20, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Michael H. Lowenstein Md A Professional Medical Corporation NPPES

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

MICHAEL H. LOWENSTEIN MD A PROFESSIONAL MEDICAL CORPORATION (NPI 1346436425) is a healthcare organization registered as a pain medicine in Santa Ana, California and active in the NPI registry since September 2007. The organization lists Sarah Mitchell, Office Manager, as its authorized official.

NPPES Registry Identity

NPI1346436425

Entity TypeOrganization

Primary Taxonomy207LP2900X

Legal Business NameMICHAEL H. LOWENSTEIN MD A PROFESSIONAL MEDICAL CORPORATION

Location Address1901 E 4TH ST, SUITE 210Santa Ana, CA 92705

Mailing Address1901 E 4th St, Suite 210Santa Ana, CA 92705-3918 · (714) 542-5999

Phone(714) 542-5999

Fax(714) 475-6991

Organization SubpartNo

Authorized OfficialSarah MitchellOffice Manager · (714) 542-5999

Enumeration DateSeptember 21, 2007

Last NPPES UpdateJuly 20, 2018

✔ NPI 1346436425 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiology · Pain MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207LP2900X

Definition

An anesthesiologist who provides a high level of care, either as a primary physician or consultant, for patients experiencing problems with acute, chronic and/or cancer pain in both hospital and ambulatory settings. Patient care needs are also coordinated with other specialists.

1901 E 4TH ST, Santa Ana, CA 92705

Open in Google Maps ↗

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)

Michael H. Lowenstein Md A Professional Medical Corporation 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 Michael H. Lowenstein MD A Professional Medical Corporation, which bills Medicare for the services this clinician delivers.

Clinician (1)

Michael Lowenstein, MD

Pain Management

NPI 1174630453

1901 E. FOURTH STREET, SUITE 210
Santa Ana, CA 92705

(714) 542-5999

✔ PECOSSame 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 Michael H. Lowenstein MD A Professional Medical Corporation's NPI number?

The NPI number for Michael H. Lowenstein MD A Professional Medical Corporation is 1346436425. It was assigned to this organization in the NPPES registry on September 21, 2007.

Where is Michael H. Lowenstein MD A Professional Medical Corporation located?

Michael H. Lowenstein MD A Professional Medical Corporation is located at 1901 E 4th St Suite 210, Santa Ana, CA 92705. The listed phone number is (714) 542-5999.

What is Michael H. Lowenstein MD A Professional Medical Corporation's specialty?

The primary specialty registered for this NPI is Anesthesiology, specializing in Pain Medicine, with taxonomy code 207LP2900X.

Is Michael H. Lowenstein MD A Professional Medical Corporation enrolled in Medicare?

Yes. Michael H. Lowenstein MD A Professional Medical Corporation is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Michael H. Lowenstein MD A Professional Medical Corporation?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Pain Management) reassigns their Medicare billing to Michael H. Lowenstein MD A Professional Medical Corporation. 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 Michael H. Lowenstein MD A Professional Medical Corporation was last updated on July 20, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.