Ann Falor Callahan, MD
Surgery Physician · Torrance, CA
Ann Falor Callahan, MD is a surgery physician with a practice address in Torrance, California, and NPI 1093962847, issued on Aug 23, 2008. Check the license (California A112637, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ann Falor Callahan
- Credential
- MD
- Primary taxonomy
- Surgery Physician 208600000X
- License numbers
- A112637 CA
60692 MN
Self-reported in NPPES; status is on the state search - Practice location
- 23451 Madison St Ste 340, Torrance, CA 90505
- Phone
- (310) 373-6864
- Enumerated
- Aug 23, 2008
- Record last updated
- Jan 16, 2025
- Medicare enrollment
- Enrolled (PECOS I20110823000510); accepts Medicare assignment
- Medical or professional school
- University Of Virginia School Of Medicine, 2008
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 3,118 in California → Look up another NPI →
Also registered at 23451 Madison St Ste 340
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Neil Bhayani, MDSurgical Oncology Physician1881874238
- Stephen Doane, M.D.Surgical Critical Care Physician1942456322
- David KollerColon & Rectal Surgery Physician1417367517
- Michael Li, M.D.Surgery Physician1346531225
- David Litvak, MDSurgical Critical Care Physician1750458758
- Timothy MorleySurgery Physician1003348061
Verify Ann Falor Callahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A112637Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
29% fewer Medicare Part D claims than the average surgery physician in 2024
105 Medicare Part D claims for 57 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 52 claims were for opioids.
Most prescribed
- Tramadol Hcl28 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 83.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $639.16
3 payments; by number, the most common kind was travel and lodging; the largest payer was Intuitive Surgical, Inc. The 17,103 providers of this specialty with any payment received $3,513.80 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
- Cedars-Sinai Medical Care FoundationTorrance, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ann Falor Callahan among 3,118 surgery physician records in California
Ann Falor Callahan, MD is one of 3,118 surgery physician records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 58% of them.
- NPI issued2008 · 58% of these records are older, 37% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2008 · median 2003 among the 1,901 with a school on file
- Record last updated2025 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in California
There are 3,118 surgery physician records in California.
All 3,118 in California → Every provider in Torrance → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Rashaan Ali-Jones, MDTorrance, CA 905051730356072
- James Camel, M.D.Torrance, CA 905051568576635
- Sameh Fayek, MDTorrance, CA 905051295889202
- Steven Fisher, M.D.Torrance, CA 905051942241476
- Melanie Friedlander, M.D.Torrance, CA 905051770596330
- Irwin Goldberg, M.D.Torrance, CA 905051548201791
- Albert Lam, M.D.Torrance, CA 905051568572717
- Roberta Mann, M.D.Torrance, CA 905051992735138
Common questions
What is Ann Falor Callahan, MD's NPI number?
Ann Falor Callahan, MD's National Provider Identifier (NPI) is 1093962847, issued on Aug 23, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Ann Falor Callahan, MD located?
The NPPES record lists a practice address at 23451 Madison St Ste 340, Torrance, CA, 90505. Phone: (310) 373-6864. Providers update this record themselves, so call before visiting.
How can I verify Ann Falor Callahan, MD's license?
NPPES lists California license number A112637, 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 Ann Falor Callahan, MD prescribe under Medicare Part D?
In 2024, Ann Falor Callahan, MD had 105 Medicare Part D claims for 57 beneficiaries; the average among surgery physician prescribers was 147. Part D covers Medicare prescriptions only.
What is Ann Falor Callahan, MD's MIPS final score?
The 2023 MIPS final score is 83.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.