John Tesser, MD
NPI 1427049220 · Rheumatology Physician · Phoenix, AZ
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Tesser, MD is a Rheumatology Physician provider in Phoenix, AZ (NPI 1427049220).
Provider details
- NPI number
- 1427049220
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 11285 (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
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
11,915 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 1,257 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,235 | $130 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 1,161 | $10 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 945 | $8 |
| Measurement C-Reactive Protein for Detection of Infection Or Inflammation86140 | 923 | $5 |
| Red Blood Cell Sedimentation Rate, to Detect Inflammation, Automated85652 | 916 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 38 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methotrexate Sodiumbrand: Methotrexate | 334 | 122 |
| Prednisone | 297 | 122 |
| Hydroxychloroquine Sulfate | 196 | 62 |
| Alendronate Sodium | 117 | 43 |
| Leucovorin Calcium | 112 | 34 |
| Duloxetine Hcl | 94 | 27 |
| Gabapentin | 91 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$91,926 across 254 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
Additional practice locations (1)
- 5681 W Beverly Ln Ste 100Glendale, AZ 85306-9800Phone: (480) 443-8400Fax: (480) 443-8697
Registry dates
- Enumerated
- 2005-10-31
- Last updated
- 2022-08-19
- Certified
- 2022-08-19
Frequently asked questions
- What is John Tesser's NPI number?
- John Tesser's National Provider Identifier (NPI) is 1427049220, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Tesser's specialty?
- John Tesser is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is John Tesser located?
- John Tesser's practice location on file with NPPES is 9520 W Palm Ln Ste 220, Phoenix, AZ 85037-4403.
- What is John Tesser's phone number?
- The practice phone number listed in the NPPES registry for John Tesser is (480) 443-8400.
- Does John Tesser accept Medicare?
- John Tesser is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Tesser's NPI active?
- Yes — John Tesser's NPI (1427049220) is active in the NPPES registry as of the last update on 2022-08-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.