Janice Johnston, M.D.
NPI 1144271461 · Family Medicine Physician · Phoenix, AZ
Janice Johnston, M.D. is a Family Medicine Physician provider in Phoenix, AZ (NPI 1144271461).
Provider details
- NPI number
- 1144271461
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 23316 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
360 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) |
|---|---|---|
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 192 | $61 |
| Chronic Care Management Services for Two Or More Chronic Conditions, Additional 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99439 | 58 | $46 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 44 | $14 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 33 | $115 |
| Administration of Influenza Virus VaccineG0008 | 19 | $31 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'S |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 46 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 225 | 92 |
| Atorvastatin Calcium | 181 | 89 |
| Lisinopril | 112 | 63 |
| Amlodipine Besylate | 110 | 55 |
| Rosuvastatin Calcium | 96 | 49 |
| Omeprazole | 85 | 37 |
| Metformin Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$117 across 5 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
- 2006-05-12
- Last updated
- 2025-09-29
- Certified
- 2025-09-29
Frequently asked questions
- What is Janice Johnston's NPI number?
- Janice Johnston's National Provider Identifier (NPI) is 1144271461, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Janice Johnston's specialty?
- Janice Johnston is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Janice Johnston located?
- Janice Johnston's practice location on file with NPPES is 2020 N Central Ave Ste 400, Phoenix, AZ 85004-4510.
- What is Janice Johnston's phone number?
- The practice phone number listed in the NPPES registry for Janice Johnston is (888) 407-7928.
- Is Janice Johnston's NPI active?
- Yes — Janice Johnston's NPI (1144271461) is active in the NPPES registry as of the last update on 2025-09-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.