Physician Profile
Janice G. Johnston, M.D.
Unclaimed ProfileAbout Dr. Johnston
Janice G. Johnston, M.D. is a healthcare provider in Phoenix, AZ specializing in family medicine. Medicare claims data shows Janice provided 373 services to 129 patients. The services billed most often include chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month, chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month, and injection of drug or substance under skin or into muscle.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (888) 407-7928
- Email not available
Practice Locations
2020 N CENTRAL AVE STE 400
Phoenix, AZ 85004
Conditions Commonly Evaluated or Treated
Within Family Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Cardiometabolic
Digestive
Genitourinary and reproductive
Musculoskeletal and pain
Neurologic and behavioral
Respiratory and infectious
Skin
Common childhood and ear conditions
Pain & Joints
Procedures & services
Most searched procedures
Preventive interventions
Screening and testing
Diagnostic Tests
Exams & Screenings
Foot and Leg Pain
Heart & Circulation
Injections
Lungs & Breathing
Minor Procedures
Occupational Health
Office procedures
Pain Management
Preventive Care
Respiratory
Senior Care
Sexual & Reproductive Health
Skin Procedures
Sleep Health
Urgent Care Procedures
Wellness & Weight
Women's Health
Procedures Most Often Billed to Medicare
373 services · 129 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
44 | As often as other peers in Family Medicine |
| Influenza vaccine split virus, preservative free | Treatment | 90662 |
13 | Less often than most peers in Family Medicine |
| Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | Office visit | 99490 |
192 | As often as other peers in Family Medicine |
| Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month | Office visit | 99439 |
58 | As often as other peers in Family Medicine |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
33 | Less often than most peers in Family Medicine |
| Administration of influenza virus vaccine | Billing code | G0008 |
19 | Less often than most peers in Family Medicine |
| 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' | Billing code | G2211 |
14 | Less often than most peers in Family Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other family doctors at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 32 related providers in 4 groups
Other family doctors in Phoenix 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1993 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Injection of drug or substance under skin or into muscle 8
Providers in AZ who bill this service to Medicare most often.
Common questions
What does Janice G. Johnston specialize in?
Janice G. Johnston is a family doctor in Phoenix, AZ. That is the designation recorded for this NPI in the federal registry, where it is listed as “Family Medicine”.
NPI registry
Where is Janice G. Johnston located?
Janice G. Johnston is listed at 2020 N Central Ave Ste 400, Phoenix, AZ 85004. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Janice G. Johnston's phone number?
The number on file is (888) 407-7928. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Janice G. Johnston?
Janice G. Johnston's National Provider Identifier is 1144271461. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Janice G. Johnston train?
Janice G. Johnston attended Other, graduating in 1993. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Janice G. Johnston have?
Janice G. Johnston has 33 years experience. Calculated from a graduation year of 1993, reported in the CMS National Downloadable File.
CMS public data
What does Janice G. Johnston do most often?
According to Medicare billing data, Janice G. Johnston provides treatments such as injection of drug or substance under skin or into muscle and influenza vaccine split virus, preservative free, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Janice G. Johnston's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Janice G. Johnston. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.