Sandra Dinwiddie, A-GNP
NPI 1326581547 · Adult Health Nurse Practitioner · Phoenix, AZ
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sandra Dinwiddie, A-GNP is a Adult Health Nurse Practitioner provider in Phoenix, AZ (NPI 1326581547).
Provider details
- NPI number
- 1326581547
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- A-GNP
- Sex
- Female
- Sole proprietor
- No
- License
- AP10488 (AZ)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
9 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
427 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 378 | $103 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 49 | $142 |
Typical Medicare-allowed amounts for these services range $103–$142 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 30 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 194 | 23 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 125 | 16 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 121 | 17 |
| Morphine Sulfatebrand: Morphine Sulfate Er | 116 | 13 |
| Tizanidine Hcl | 96 | 23 |
| Hydromorphone Hcl | 65 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$28 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-11-19
- Last updated
- 2020-09-30
- Certified
- 2020-09-30
Frequently asked questions
- What is Sandra Dinwiddie's NPI number?
- Sandra Dinwiddie's National Provider Identifier (NPI) is 1326581547, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sandra Dinwiddie's specialty?
- Sandra Dinwiddie is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Sandra Dinwiddie located?
- Sandra Dinwiddie's practice location on file with NPPES is 20823 N Cave Creek Rd Ste 103, Phoenix, AZ 85024-4469.
- What is Sandra Dinwiddie's phone number?
- The practice phone number listed in the NPPES registry for Sandra Dinwiddie is (623) 439-5585.
- Does Sandra Dinwiddie accept Medicare?
- Sandra Dinwiddie is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sandra Dinwiddie's NPI active?
- Yes — Sandra Dinwiddie's NPI (1326581547) is active in the NPPES registry as of the last update on 2020-09-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.