Karla D. Wax, N.P.-C.
Family Nurse Practitioner · Phoenix, AZ
Karla D. Wax, N.P.-C. is a family nurse practitioner with a practice address in Phoenix, Arizona, and NPI 1003042961, issued on Jun 5, 2009. Check the license (Arizona AT3373, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karla D. Wax
- Credential
- N.P.-C.
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- AT3373 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 1331 N 7TH St, Phoenix, AZ 85006
- Phone
- (602) 254-3151
- Enumerated
- Jun 5, 2009
- Record last updated
- Jun 5, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (602) 256-9581
- Medicare enrollment
- Enrolled (PECOS I20090929000190); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 5,933 in Arizona → Look up another NPI →
Also registered at 1331 N 7TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Karla D. Wax in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license AT3373Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average family nurse practitioner in 2024
23 Medicare Part D claims for 18 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 18 claims were for opioids.
Most prescribed
- Oxycodone-Acetaminophen11 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.
Bills Medicare through one group practice
- Neurosurgical Associates LtdChandler, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karla D. Wax among 5,933 family nurse practitioner records in Arizona
Karla D. Wax, N.P.-C. is one of 5,933 family nurse practitioner records with a practice address in Arizona. 77% 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 14% of them.
- NPI issued2009 · 14% of these records are older, 84% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2013 · median 2019 among the 3,510 with a school on file
- Record last updated2009 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,242 family nurse practitioner records list a practice address in Phoenix
They are 1,242 of the 31,399 NPPES records with a practice address in Phoenix, and 5,933 family nurse practitioner records in Arizona.
All 5,933 in Arizona → Every provider in Phoenix → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Amy Ashburn, ARNPPhoenix, AZ 850061477875532
- Darlene Birdwell, FNPPhoenix, AZ 850061396712568
- Claire Kelley, FNPPhoenix, AZ 850061649581620
- Alice Kraft, FNP-CPhoenix, AZ 850061588713952
- Emily Lash, FNP-BCPhoenix, AZ 850061578755450
- Kelly Maurer, NPPhoenix, AZ 850061326066838
- Stephanie MorgandoPhoenix, AZ 850061457788499
- Kay Olmsted, APRNPhoenix, AZ 850061831288059
Common questions
What is Karla D. Wax, N.P.-C.'s NPI number?
Karla D. Wax, N.P.-C.'s National Provider Identifier (NPI) is 1003042961, issued on Jun 5, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Karla D. Wax, N.P.-C. located?
The NPPES record lists a practice address at 1331 N 7TH St, Phoenix, AZ, 85006. Phone: (602) 254-3151. Providers update this record themselves, so call before visiting.
How can I verify Karla D. Wax, N.P.-C.'s license?
NPPES lists Arizona license number AT3373, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
How much does Karla D. Wax, N.P.-C. prescribe under Medicare Part D?
In 2024, Karla D. Wax, N.P.-C. had 23 Medicare Part D claims for 18 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.