Diljit Karayil, M.D
NPI 1346454220 · Internal Medicine Physician · Vallejo, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diljit Karayil, M.D is a Internal Medicine Physician provider in Vallejo, CA (NPI 1346454220).
Provider details
- NPI number
- 1346454220
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Male
- Sole proprietor
- No
- License
- 4301091390 (MI)
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
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
24 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) |
|---|---|---|
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 24 | $104 |
Typical Medicare-allowed amounts for these services range $104–$104 (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 · 105 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 564 | 241 |
| Amlodipine Besylate | 460 | 172 |
| Losartan Potassium | 282 | 115 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 253 | 106 |
| Pantoprazole Sodium | 243 | 89 |
| Lisinopril | 236 | 92 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-09
- Last updated
- 2021-12-20
- Certified
- 2021-12-20
Frequently asked questions
- What is Diljit Karayil's NPI number?
- Diljit Karayil's National Provider Identifier (NPI) is 1346454220, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diljit Karayil's specialty?
- Diljit Karayil is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Diljit Karayil located?
- Diljit Karayil's practice location on file with NPPES is 975 Sereno Drive, Medical Office- 8, Vallejo, CA 94589.
- What is Diljit Karayil's phone number?
- The practice phone number listed in the NPPES registry for Diljit Karayil is (707) 651-1025.
- Does Diljit Karayil accept Medicare?
- Diljit Karayil is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diljit Karayil's NPI active?
- Yes — Diljit Karayil's NPI (1346454220) is active in the NPPES registry as of the last update on 2021-12-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.