Joseph Zachariah, DO
NPI 1649293895 · Infectious Disease Physician · Mesa, AZ
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Zachariah, DO is a Infectious Disease Physician provider in Mesa, AZ (NPI 1649293895).
Provider details
- NPI number
- 1649293895
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 3216 (AZ)
Specialties & taxonomies
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
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
521 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 241 | $110 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 167 | $73 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 82 | $161 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 31 | $90 |
Typical Medicare-allowed amounts for these services range $73–$161 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Daptomycin | 55 | 11 |
| Meropenem | 45 | — |
| Doxycycline Hyclate | 33 | 23 |
| Cefepime Hcl | 28 | — |
| Ceftriaxone Sodiumbrand: Ceftriaxone | 24 | — |
| Vancomycin Hcl | 21 | — |
| Cefdinir | 20 | 20 |
| Ertapenem Sodiumbrand: Ertapenem | 19 |
Practice location
Mailing address
Additional practice locations (2)
- 6644 E Baywood AveMesa, AZ 85206-1747Phone: (602) 369-1941Fax: (602) 241-0249
- 5966 W Curtisian AveBoise, ID 83704-8801Phone: (208) 302-5450Fax: (208) 302-5495
Registry dates
- Enumerated
- 2006-07-26
- Last updated
- 2025-08-04
- Certified
- 2025-07-28
Frequently asked questions
- What is Joseph Zachariah's NPI number?
- Joseph Zachariah's National Provider Identifier (NPI) is 1649293895, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Zachariah's specialty?
- Joseph Zachariah is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Zachariah located?
- Joseph Zachariah's practice location on file with NPPES is 1400 S Dobson Rd, Mesa, AZ 85202-4707.
- What is Joseph Zachariah's phone number?
- The practice phone number listed in the NPPES registry for Joseph Zachariah is (480) 412-3000.
- Does Joseph Zachariah accept Medicare?
- Joseph Zachariah is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Zachariah's NPI active?
- Yes — Joseph Zachariah's NPI (1649293895) is active in the NPPES registry as of the last update on 2025-08-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.