Cynthia Dawn Diaz, FNP-C
Family Nurse Practitioner · San Manuel, AZ
Cynthia Dawn Diaz, FNP-C is a family nurse practitioner with a practice address in San Manuel, Arizona, and NPI 1679128466, issued on Aug 7, 2019. Check the license (Arizona 230536, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Cynthia Dawn Diaz
- Credential
- FNP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 230536 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 23 S Mcnab Pkwy, San Manuel, AZ 85631
- Phone
- (520) 385-2234
- Enumerated
- Aug 7, 2019
- Record last updated
- Jan 8, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (520) 381-3209
- Medicare enrollment
- Enrolled (PECOS I20191111002021); 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 23 S Mcnab Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Naomi Duffett, NPFamily Nurse Practitioner1235808205
- Jacy Godsey, APRN-CNPNurse Practitioner1376039057
- Boru Nale, M.D.Family Medicine Physician1497949226
- Sharan Wieberdink, FNPFamily Nurse Practitioner1467807131
Verify Cynthia Dawn Diaz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license 230536Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.2 times the Medicare Part D claims of the average family nurse practitioner in 2024
4,152 Medicare Part D claims for 390 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 61 claims were for opioids.
Most prescribed
- Levothyroxine Sodium202 claims
- Atorvastatin Calcium152 claims
- Lisinopril138 claims
- Losartan Potassium119 claims
- Amlodipine Besylate112 claims
- Gabapentin98 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): 81.9 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).
Bills Medicare through one group practice
- Tucson Physician Group Holdings LLCTucson, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cynthia Dawn Diaz among 5,933 family nurse practitioner records in Arizona
Cynthia Dawn Diaz, FNP-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 2019, is newer than 54% of them.
- NPI issued2019 · 54% of these records are older, 40% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2019 · median 2019 among the 3,510 with a school on file
- Record last updated2021 · 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).
3 family nurse practitioner records list a practice address in San Manuel
They are 3 of the 11 NPPES records with a practice address in San Manuel, and 5,933 family nurse practitioner records in Arizona.
All 5,933 in Arizona → Every provider in San Manuel → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Naomi Duffett, NPSan Manuel, AZ 856311235808205
- Sharan Wieberdink, FNPSan Manuel, AZ 856311467807131
- Cora-Lee Behling, FNPSahuarita, AZ 856291851961312
- Martha Borbon, FNP-BCSahuarita, AZ 856291457604506
- Marissa Gonzalez, ARNPSahuarita, AZ 856291730924572
- Laura IdrissouSahuarita, AZ 856291659048627
- Rebekah Lewis, FNP-CSahuarita, AZ 856291386987717
- William Lucas, FNP-CSahuarita, AZ 856291730671140
Common questions
What is Cynthia Dawn Diaz, FNP-C's NPI number?
Cynthia Dawn Diaz, FNP-C's National Provider Identifier (NPI) is 1679128466, issued on Aug 7, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Cynthia Dawn Diaz, FNP-C located?
The NPPES record lists a practice address at 23 S Mcnab Pkwy, San Manuel, AZ, 85631. Phone: (520) 385-2234. Providers update this record themselves, so call before visiting.
How can I verify Cynthia Dawn Diaz, FNP-C's license?
NPPES lists Arizona license number 230536, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
How much does Cynthia Dawn Diaz, FNP-C prescribe under Medicare Part D?
In 2024, Cynthia Dawn Diaz, FNP-C had 4,152 Medicare Part D claims for 390 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
What is Cynthia Dawn Diaz, FNP-C's MIPS final score?
The 2023 MIPS final score is 81.9 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.