John Demenkoff, M.D.
NPI 1295718419 · Internal Medicine Physician · Phoenix, AZ
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Demenkoff, M.D. is a Internal Medicine Physician provider in Phoenix, AZ (NPI 1295718419).
Provider details
- NPI number
- 1295718419
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 29076 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 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
981 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 516 | $123 |
| 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'SG2211 | 247 | $16 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 59 | $175 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 41 | $14 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 38 | $84 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 83 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 193 | 54 |
| Rosuvastatin Calcium | 166 | 47 |
| Apixabanbrand: Eliquis | 127 | 34 |
| Tamsulosin Hcl | 119 | 36 |
| Levothyroxine Sodium | 99 | 30 |
| Amlodipine Besylate | 82 | 26 |
Practice location
Mailing address
Additional practice locations (1)
- 13400 E Shea BlvdScottsdale, AZ 85259-5452Phone: (480) 301-8000
Registry dates
- Enumerated
- 2005-11-22
- Last updated
- 2020-10-02
- Certified
- 2020-10-02
Frequently asked questions
- What is John Demenkoff's NPI number?
- John Demenkoff's National Provider Identifier (NPI) is 1295718419, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Demenkoff's specialty?
- John Demenkoff is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Demenkoff located?
- John Demenkoff's practice location on file with NPPES is 5779 E Mayo Blvd, Phoenix, AZ 85054-4502.
- What is John Demenkoff's phone number?
- The practice phone number listed in the NPPES registry for John Demenkoff is (480) 301-8000.
- Does John Demenkoff accept Medicare?
- John Demenkoff is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Demenkoff's NPI active?
- Yes — John Demenkoff's NPI (1295718419) is active in the NPPES registry as of the last update on 2020-10-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.