Ruth Ann Ackermann, M.D.
Anesthesiology Physician · Torrance, CA
Ruth Ann Ackermann, M.D. is an anesthesiology physician with a practice address in Torrance, California, and NPI 1336175082, issued on Jun 24, 2006. Check the license (California A46287, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ruth Ann Ackermann
- Credential
- M.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- A46287 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3445 Pacific Coast Hwy, Torrance, CA 90505
- Phone
- (310) 325-4555
- Enumerated
- Jun 24, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (310) 325-5005
- Medicare enrollment
- Enrolled (PECOS I20050913001278); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Also registered at 3445 Pacific Coast Hwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ruth Ann Ackermann in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A46287Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Perioperative Anesthesia ConsultantsTorrance, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ruth Ann Ackermann among 7,571 anesthesiology physician records in California
Ruth Ann Ackermann, M.D. is one of 7,571 anesthesiology physician records with a practice address in California. 71% 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, 53% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1987 · median 2006 among the 4,868 with a school on file
- Record last updated2026 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
136 anesthesiology physician records list a practice address in Torrance
They are 136 of the 8,901 NPPES records with a practice address in Torrance, and 7,571 anesthesiology physician records in California.
All 7,571 in California → Every provider in Torrance → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Drew Cheng, M.D.Torrance, CA 905051306802541
- James Conner, M.D.Torrance, CA 905051336191014
- Joseph Farlo, M.DTorrance, CA 905051386663540
- Kianusch Kiai, MDTorrance, CA 905051942241740
- Deborah Lynn, M.D.Torrance, CA 905051194776849
- Michael Mehmedbasich, M.D.Torrance, CA 905051538199195
- Jeanette Oka, M.D.Torrance, CA 905051013936194
- Fraser Perkins, M.D.Torrance, CA 905051851310916
Common questions
What is Ruth Ann Ackermann, M.D.'s NPI number?
Ruth Ann Ackermann, M.D.'s National Provider Identifier (NPI) is 1336175082, issued on Jun 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ruth Ann Ackermann, M.D. located?
The NPPES record lists a practice address at 3445 Pacific Coast Hwy, Torrance, CA, 90505. Phone: (310) 325-4555. Providers update this record themselves, so call before visiting.
How can I verify Ruth Ann Ackermann, M.D.'s license?
NPPES lists California license number A46287, 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.
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.