Karthik Donuur, M.D.
NPI 1073989398 · Hospitalist Physician · Casa Grande, AZ
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karthik Donuur, M.D. is a Hospitalist Physician provider in Casa Grande, AZ (NPI 1073989398).
Provider details
- NPI number
- 1073989398
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 51975 (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
10 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
972 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 368 | $113 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 208 | $76 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 183 | $166 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 177 | $110 |
| Critical Care, First 30-74 Minutes99291 | 36 | $205 |
Typical Medicare-allowed amounts for these services range $76–$205 (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 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 61 | 60 |
| Cefdinir | 32 | 32 |
| Amlodipine Besylate | 28 | 28 |
| Furosemide | 27 | 27 |
| Oxycodone Hcl | 27 | 27 |
| Atorvastatin Calcium | 16 | 16 |
| Carvedilol | 13 | 13 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$186 across 2 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
- 2015-08-20
- Last updated
- 2018-12-31
Frequently asked questions
- What is Karthik Donuur's NPI number?
- Karthik Donuur's National Provider Identifier (NPI) is 1073989398, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karthik Donuur's specialty?
- Karthik Donuur is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Karthik Donuur located?
- Karthik Donuur's practice location on file with NPPES is 1800 E. Florence Blvd., Casa Grande, AZ 85122-5303.
- What is Karthik Donuur's phone number?
- The practice phone number listed in the NPPES registry for Karthik Donuur is (480) 543-2034.
- Does Karthik Donuur accept Medicare?
- Karthik Donuur is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karthik Donuur's NPI active?
- Yes — Karthik Donuur's NPI (1073989398) is active in the NPPES registry as of the last update on 2018-12-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.