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MICHAEL HOWARD LOWENSTEIN MD
NPI 1174630453
Anesthesiology - Pain Medicine in Santa Ana, CA

Active since August 24, 2006PECOS Enrolled
1901 E. FOURTH STREET, SUITE 210, SANTA ANA, CA 92705(714) 542-5999(714) 475-6991 Get Directions Write a Review

NPPES record last updated: November 5, 2012. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Michael Howard Lowenstein Md NPPES

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

MICHAEL HOWARD LOWENSTEIN MD (NPI 1174630453) is an individual pain medicine provider in Santa Ana, California, licensed in California (G66509) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of Loma Linda University School Of Medicine (1988).

NPPES Registry Identity

NPI1174630453
Entity TypeIndividualMale
Primary Taxonomy207LP2900X
Provider Legal NameMICHAEL HOWARD LOWENSTEINCredential: MD
Location Address1901 E. FOURTH STREET, SUITE 210Santa Ana, CA 92705
Mailing Address1200 N Tustin Ave, Ste 100Santa Ana, CA 92705-3508 · (714) 542-5999
Phone(714) 542-5999
Fax(714) 475-6991
Sole ProprietorYes
Medical School CMSLoma Linda University School Of MedicineGraduated 1988
Enumeration DateAugust 24, 2006
Last NPPES UpdateNovember 5, 2012
✔ NPI 1174630453 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiology · Pain MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207LP2900X
License✔ Licensed in CA · G66509
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. FOURTH STREET, SUITE 210, Santa Ana, CA 92705
Open in Google Maps ↗

Other Identifiers 2

Other127162800CA · Dept Of Labor
Medicare UPINWG66509GCA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Michael Howard Lowenstein Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7618982158
PECOS Enrollment IDI20110224000935
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Michael Lowenstein reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Michael H. Lowenstein MD A Professional Medical Corporation
Same address
Pain Medicine
1901 E 4TH ST, SUITE 210
Santa Ana, CA 92705
  • Reassigned Medicare billing, California enrollment
NPI 1346436425 (714) 542-5999
Irvine Physical Medicine & Rehabilitation A Medical Corporation
5.9 mi
Orthopedic
18124 CULVER DR, SUITE F
Irvine, CA 92612
  • Reassigned Medicare billing, California enrollment
  • 4 clinicians in this Medicare group
NPI 1366436396 (949) 552-9393
Fountain Valley Integrative Physical Medicine
8.2 mi
Physical Medicine & Rehabilitation
18042 MAGNOLIA ST
Fountain Valley, CA 92708
  • Reassigned Medicare billing, California enrollment
  • 2 clinicians in this Medicare group
NPI 1942642533 (714) 962-1674

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

Areas of Expertise CMS Part B claims 11

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
605 services115 patients
Injection, dexamethasone sodium phosphate, 1 mg J1100
Dexamethasone sodium phosphate is a medication given via injection. It is a type of steroid that helps reduce inflammation and immune responses. It can be used to treat a variety of conditions, such as allergies, skin conditions, arthritis, and more.
268 services23 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
224 services72 patients
Aspiration and/or injection of fluid large joint using ultrasound guidance 20611
This procedure involves using ultrasound technology to accurately locate a large joint, usually the knee or shoulder. A needle is then inserted to either extract fluid (aspiration) or inject medication. The ultrasound helps ensure precision and safety.
110 services24 patients
Hyaluronan or derivative, hyalgan, supartz or visco-3, for intra-articular injection, per dose J7321
Hyaluronan or derivatives like Hyalgan, Supartz, or Visco-3, are used in intra-articular injections for joint pain relief. They help by improving joint lubrication, reducing inflammation, and promoting tissue healing. Each dose is administered directly into the joint space.
108 services19 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
57 services57 patients

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Neuromuscular stimulator, electronic shock unit E0745
DME-Other DME · category DE000N
1 supplier304 claims304 services$56.77 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Lowenstein's NPI number?

The NPI number for Michael Lowenstein is 1174630453. It was assigned to this individual provider in the NPPES registry on August 24, 2006.

Where is Michael Lowenstein located?

Michael Lowenstein practices at 1901 E. Fourth Street, Suite 210, Santa Ana, CA 92705. The listed phone number is (714) 542-5999.

What is Michael Lowenstein's specialty?

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

Is Michael Lowenstein enrolled in Medicare?

Yes. Michael Lowenstein is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Michael Lowenstein's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Lowenstein reassigns Medicare benefits to 3 organizations: Michael H. Lowenstein MD A Professional Medical Corporation (Santa Ana, CA), Irvine Physical Medicine & Rehabilitation A Medical Corporation (Irvine, CA) and Fountain Valley Integrative Physical Medicine (Fountain Valley, CA). Each 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 Michael Lowenstein's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Michael Lowenstein was last updated on November 5, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.