NPPES file of Aug 9, 2026

Kathryn Caldwell Perkins Tift, M.D.

Orthopaedic Surgery Physician · Fountain Valley, CA

Kathryn Caldwell Perkins Tift, M.D. is an orthopaedic surgery physician with a practice address in Fountain Valley, California, and NPI 1831382662, issued on Aug 24, 2007. Check the license (California A104909, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1831382662
Name
Kathryn Caldwell Perkins Tift
Credential
M.D.
Primary taxonomy
Orthopaedic Surgery Physician 207X00000X
License number
A104909 CA
Self-reported in NPPES; status is on the state search
Practice location
11160 Warner Ave, Fountain Valley, CA 92708
Phone
(714) 850-7300
Enumerated
Aug 24, 2007
Record last updated
Nov 3, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(714) 850-7310
Medicare enrollment
Enrolled (PECOS I20130612000436); accepts Medicare assignment
Medical or professional school
Tulane University School Of Medicine, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 11160 Warner Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Shlomi Albert, M.D.Urology Physician1144259946
  2. Dustin Briggs, CST, CSFASurgical Assistant1457547671
  3. Alberto CacheroPhysical Therapist1245301092
  4. Chiwai Chan, D.O.Interventional Pain Medicine Physician1629051529
  5. Steven Chan, D.D.S.General Practice Dentistry1396748240
  6. Philip Chin, M.D.Specialist1548224629

Verify Kathryn Caldwell Perkins Tift in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A104909
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. OrthowestIrvine, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Kathryn Caldwell Perkins Tift among 2,276 orthopaedic surgery physician records in California

Kathryn Caldwell Perkins Tift, M.D. is one of 2,276 orthopaedic surgery physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 54% of them.

  • NPI issued2007 · 54% of these records are older, 35% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2006 · median 2003 among the 1,347 with a school on file
  • Record last updated2020 · 66% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthopaedic Surgery Physician providers in California

There are 2,276 orthopaedic surgery physician records in California.

The 8 orthopaedic surgery physician records with the nearest ZIP codes

  1. Kenneth Chambers, M.D., M.P.HFountain Valley, CA 927081023347846
  2. Timothy Cheng, M.D.Fountain Valley, CA 927081972940872
  3. Ramy Elias, M.D.Fountain Valley, CA 927081437165362
  4. Ryan Fan, MDFountain Valley, CA 927081720052459
  5. Peter Pyrko, M.D., PH.D.Fountain Valley, CA 927081467695056
  6. Richard Raczka, MDFountain Valley, CA 927081194744680
  7. Daniel Stein, M.D.Fountain Valley, CA 927081205864477
  8. Minal TapadiaFountain Valley, CA 927081982995916

Common questions

What is Kathryn Caldwell Perkins Tift, M.D.'s NPI number?

Kathryn Caldwell Perkins Tift, M.D.'s National Provider Identifier (NPI) is 1831382662, issued on Aug 24, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Kathryn Caldwell Perkins Tift, M.D. located?

The NPPES record lists a practice address at 11160 Warner Ave, Fountain Valley, CA, 92708. Phone: (714) 850-7300. Providers update this record themselves, so call before visiting.

How can I verify Kathryn Caldwell Perkins Tift, M.D.'s license?

NPPES lists California license number A104909, 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.