Christina Summers, FNP-C
NPI 1821319872 · Family Nurse Practitioner · Phoenix, AZ
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christina Summers, FNP-C is a Family Nurse Practitioner provider in Phoenix, AZ (NPI 1821319872).
Provider details
- NPI number
- 1821319872
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- AP3921 (AZ)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
450 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 171 | $104 |
| Prolonged Home Or Residence Evaluation and Management Service(s) Beyond the Total Time for the Primary Service (when the Primary Service Has Been Selected Using Time on the Date of the Primary Service); Each Additional 15 Minutes By the Physician Or QualifG0318 | 52 | $26 |
| Residence Visit for Established Patient With High Level of Medical Decision Making, Per Day, If Using Time, at Least 60 Minutes99350 | 49 | $152 |
| Physician Or Allowed Practitioner Certification for Medicare-Covered Home Health Services Under a Home Health Plan of Care (patient Not Present), Including Contacts With Home Health Agency and Review of Reports of Patient Status Required By Physicians andG0180 | 46 | $44 |
| Residence Visit for New Patient With High Level of Medical Decision Making, Per Day, If Using Time, at Least 75 Minutes99345 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 53 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 84 | 26 |
| Furosemide | 80 | 23 |
| Amlodipine Besylate | 72 | 24 |
| Gabapentin | 72 | 18 |
| Atorvastatin Calcium | 71 | 21 |
| Losartan Potassium | 67 | 18 |
| Lisinopril | 65 |
Practice location
Mailing address
Additional practice locations (1)
- 10117 N 92nd St Ste 101Scottsdale, AZ 85258-4555Phone: (480) 614-5808Fax: (480) 614-5809
Registry dates
- Enumerated
- 2010-06-14
- Last updated
- 2025-08-11
- Certified
- 2025-08-11
Frequently asked questions
- What is Christina Summers's NPI number?
- Christina Summers's National Provider Identifier (NPI) is 1821319872, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christina Summers's specialty?
- Christina Summers is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Christina Summers located?
- Christina Summers's practice location on file with NPPES is 8913 N 19th Ave, Phoenix, AZ 85021-4206.
- What is Christina Summers's phone number?
- The practice phone number listed in the NPPES registry for Christina Summers is (602) 858-4361.
- Does Christina Summers accept Medicare?
- Christina Summers is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christina Summers's NPI active?
- Yes — Christina Summers's NPI (1821319872) is active in the NPPES registry as of the last update on 2025-08-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.