Karla L. Birkholz, MD
Family Medicine Physician · Glendale, AZ
Karla L. Birkholz, MD is a family medicine physician with a practice address in Glendale, Arizona, and NPI 1386620821, issued on Dec 16, 2005. Check the license (Arizona AZ13789, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Karla L. Birkholz
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- AZ13789 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 6320 W Union Hills Dr, Glendale, AZ 85308
- Phone
- (623) 561-9913
- Enumerated
- Dec 16, 2005
- Record last updated
- Sep 24, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (623) 561-6148
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,119 in Arizona → Look up another NPI →
Also registered at 6320 W Union Hills Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Heather Gibson, DPTPhysical Therapist1831598168
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- Kathleen Hanson, L.M.T.Specialist1316273188
- Taylor HayamotoPhysical Therapist1982374914
Verify Karla L. Birkholz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license AZ13789Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average family medicine physician in 2024
417 Medicare Part D claims for 22 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 99 claims were for opioids.
Most prescribed
- Oxycodone Hcl40 claims
- Progesterone33 claims
- Tramadol Hcl32 claims
- Estradiol29 claims
- Cyclobenzaprine Hcl18 claims
- Eliquis16 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.
Karla L. Birkholz among 3,119 family medicine physician records in Arizona
Karla L. Birkholz, MD is one of 3,119 family medicine physician records with a practice address in Arizona. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2013 · 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 207Q00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
127 family medicine physician records list a practice address in Glendale
They are 127 of the 5,447 NPPES records with a practice address in Glendale, and 3,119 family medicine physician records in Arizona.
All 3,119 in Arizona → Every provider in Glendale → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Louis Cerato, D.O.Glendale, AZ 853081174515951
- John Ellis, D.O.Glendale, AZ 853081285631242
- Deborah Hahn, D.O.Glendale, AZ 853081629075932
- Eric Honing, MDGlendale, AZ 853081497754758
- Lori Kemper, D.O.Glendale, AZ 853081659378651
- Rachel Langland, M.D.Glendale, AZ 853081164411849
- Sonia Lenzmeier, M.D.Glendale, AZ 853081942283064
- Mark Luba, MDGlendale, AZ 853081437139813
Common questions
What is Karla L. Birkholz, MD's NPI number?
Karla L. Birkholz, MD's National Provider Identifier (NPI) is 1386620821, issued on Dec 16, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Karla L. Birkholz, MD located?
The NPPES record lists a practice address at 6320 W Union Hills Dr, Glendale, AZ, 85308. Phone: (623) 561-9913. Providers update this record themselves, so call before visiting.
How can I verify Karla L. Birkholz, MD's license?
NPPES lists Arizona license number AZ13789, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Karla L. Birkholz, MD prescribe under Medicare Part D?
In 2024, Karla L. Birkholz, MD had 417 Medicare Part D claims for 22 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.