Derek R. Flake, PT
Physical Therapist · Lakeside, AZ
Derek R. Flake, PT is a physical therapist with a practice address in Lakeside, Arizona, and NPI 1104154269, issued on Dec 1, 2009. Check the license (Arizona 8520PT, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Derek R. Flake
- Credential
- PT
- Primary taxonomy
- Physical Therapist 225100000X
- License number
- 8520PT AZ
Self-reported in NPPES; status is on the state search - Practice location
- 4830 Highway 260 Ste 105, Lakeside, AZ 85929
- Phone
- (928) 532-1221
- Enumerated
- Dec 1, 2009
- Record last updated
- Mar 16, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (928) 532-1227
- Medicare enrollment
- Enrolled (PECOS I20101028000656); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physical therapist records → All 5,351 in Arizona → Look up another NPI →
Also registered at 4830 Highway 260 Ste 105
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mary Katherine Hegarty, PTPhysical Therapist1215425202
- Kyle Howell, D.P.TPhysical Therapist1497494918
- Michele Russell, D.P.T.Physical Therapist1699343558
Verify Derek R. Flake in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license 8520PTCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 13.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- White Mountain Physical Therapy LtdLakeside, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Derek R. Flake among 5,351 physical therapist records in Arizona
Derek R. Flake, PT is one of 5,351 physical therapist records with a practice address in Arizona. 40% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 29% of them.
- NPI issued2009 · 29% of these records are older, 68% newer
- In a Medicare fileYes · 40% of these records are
- In the CMS Doctors and Clinicians fileYes · 41% of these records are
- Graduated2009 · median 2018 among the 2,172 with a school on file
- Record last updated2020 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225100000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
8 physical therapist records list a practice address in Lakeside
They are 8 of the 79 NPPES records with a practice address in Lakeside, and 5,351 physical therapist records in Arizona.
All 5,351 in Arizona → Every provider in Lakeside → Physical Therapist nationwide →
The 8 physical therapist records with the nearest ZIP codes
- Morgan Black, DPTTaylor, AZ 859291730857616
- Eric CoxLakeside, AZ 859291275565160
- Rachel Ellsworth, PTLakeside, AZ 859291316490949
- Mary Katherine Hegarty, PTLakeside, AZ 859291215425202
- Kyle Howell, D.P.TLakeside, AZ 859291497494918
- Michele Russell, D.P.T.Lakeside, AZ 859291699343558
- David Valentine, P.T., D.P.T.Lakeside, AZ 859291629412721
- Angela Valentine, P.T., D.P.T.Lakeside, AZ 859291154737625
Common questions
What is Derek R. Flake, PT's NPI number?
Derek R. Flake, PT's National Provider Identifier (NPI) is 1104154269, issued on Dec 1, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Derek R. Flake, PT located?
The NPPES record lists a practice address at 4830 Highway 260 Ste 105, Lakeside, AZ, 85929. Phone: (928) 532-1221. Providers update this record themselves, so call before visiting.
How can I verify Derek R. Flake, PT's license?
NPPES lists Arizona license number 8520PT, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
What is Derek R. Flake, PT's MIPS final score?
The 2023 MIPS final score is 13.3 of 100. 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.