Michael Howard Lowenstein, MD
Pain Medicine (Anesthesiology) Physician · Santa Ana, CA
Michael Howard Lowenstein, MD is a pain medicine (anesthesiology) physician with a practice address in Santa Ana, California, and NPI 1174630453, issued on Aug 24, 2006. Check the license (California G66509, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael Howard Lowenstein
- Credential
- MD
- Primary taxonomy
- Pain Medicine (Anesthesiology) Physician 207LP2900X
- License number
- G66509 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1901 E. Fourth Street, Suite 210, Santa Ana, CA 92705
- Phone
- (714) 542-5999
- Enumerated
- Aug 24, 2006
- Record last updated
- Nov 5, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (714) 475-6991
- Medicare enrollment
- Enrolled (PECOS I20110224000935); may accept Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 1988
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest pain medicine (anesthesiology) physician records → All 536 in California → Look up another NPI →
Verify Michael Howard Lowenstein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G66509Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
43% fewer Medicare Part D claims than the average pain medicine (anesthesiology) physician in 2024
995 Medicare Part D claims for 126 beneficiaries, against an average of 1,750 among the 2,982 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims. 273 claims were for opioids.
Most prescribed
- Gabapentin180 claims
- Hydrocodone-Acetaminophen95 claims
- Oxycodone-Acetaminophen77 claims
- Duloxetine Hcl59 claims
- Tizanidine Hcl55 claims
- Celecoxib50 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $481.43
7 payments; by number, the most common kind was food and beverage; the largest payer was Biotronik Nro, Inc. The 2,789 providers of this specialty with any payment received $3,225.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Irvine Physical Medicine And Rehabilitation A Medical CorporationIrvine, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Howard Lowenstein among 536 pain medicine (anesthesiology) physician records in California
Michael Howard Lowenstein, MD is one of 536 pain medicine (anesthesiology) physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 57% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1988 · median 2004 among the 367 with a school on file
- Record last updated2012 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207LP2900X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pain Medicine (Anesthesiology) Physician providers in California
There are 536 pain medicine (anesthesiology) physician records in California.
All 536 in California → Every provider in Santa Ana → Pain Medicine (Anesthesiology) Physician nationwide →
The 8 pain medicine (anesthesiology) physician records with the nearest ZIP codes
- Kenneth Grabow, MDSanta Ana, CA 927051629089529
- James Kim, M.D.Santa Ana, CA 927051720249691
- Hooman Rastegar, MDSanta Ana, CA 927051710149711
- Alan Ho, M.D.Fountain Valley, CA 927081154565612
- Afzaal IqbalFountain Valley, CA 927081861782674
- Elizabeth WatsonFountain Valley, CA 927081457858227
- Patrick Ahern, MDIrvine, CA 926971154883072
- Cecil Desilva, M.D.Irvine, CA 926971649426248
Common questions
What is Michael Howard Lowenstein, MD's NPI number?
Michael Howard Lowenstein, MD's National Provider Identifier (NPI) is 1174630453, issued on Aug 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael Howard Lowenstein, MD located?
The NPPES record lists a practice address at 1901 E. Fourth Street, Suite 210, Santa Ana, CA, 92705. Phone: (714) 542-5999. Providers update this record themselves, so call before visiting.
How can I verify Michael Howard Lowenstein, MD's license?
NPPES lists California license number G66509, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Michael Howard Lowenstein, MD prescribe under Medicare Part D?
In 2024, Michael Howard Lowenstein, MD had 995 Medicare Part D claims for 126 beneficiaries; the average among pain medicine (anesthesiology) physician prescribers was 1,750. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.