Diraj Karnani, M. D.
NPI 1639516172 · Rheumatology Physician · Apple Valley, CA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diraj Karnani, M. D. is a Rheumatology Physician provider in Apple Valley, CA (NPI 1639516172).
Provider details
- NPI number
- 1639516172
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M. D.
- Sex
- Male
- Sole proprietor
- No
- License
- A132960 (CA)
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
13 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
4,865 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,555 | $131 |
| 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 | 1,326 | $16 |
| Limited Ultrasound Scan of Joint Or Other Extremity Structure Except Blood Vessels76882 | 469 | $66 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 451 | $135 |
| Administration of Non-Hormonal Anti-Neoplastic Chemotherapy Under Skin Or Into Muscle96401 | 293 | $76 |
| Administration of Chemotherapy Into Vein, Each Additional Hour |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 52 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methotrexate Sodiumbrand: Methotrexate | 600 | 211 |
| Hydroxychloroquine Sulfate | 590 | 233 |
| Prednisone | 337 | 126 |
| Folic Acid | 193 | 74 |
| Etanerceptbrand: Enbrel Sureclick | 187 | 40 |
| Gabapentin | 147 | 58 |
| Alendronate Sodium | 146 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,226 across 67 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 (2)
- 18419 US Highway 18 Ste 6Apple Valley, CA 92307Phone: (760) 946-9955Fax: (760) 946-9409
- 18419 US Highway 18 Ste 6Apple Valley, CA 92307Phone: (760) 946-9955Fax: (760) 946-9409
Registry dates
- Enumerated
- 2013-05-23
- Last updated
- 2018-10-04
Frequently asked questions
- What is Diraj Karnani's NPI number?
- Diraj Karnani's National Provider Identifier (NPI) is 1639516172, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diraj Karnani's specialty?
- Diraj Karnani is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Diraj Karnani located?
- Diraj Karnani's practice location on file with NPPES is 18419 US Highway 18 Ste 6, Apple Valley, CA 92307.
- What is Diraj Karnani's phone number?
- The practice phone number listed in the NPPES registry for Diraj Karnani is (760) 946-9955.
- Does Diraj Karnani accept Medicare?
- Diraj Karnani is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diraj Karnani's NPI active?
- Yes — Diraj Karnani's NPI (1639516172) is active in the NPPES registry as of the last update on 2018-10-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.