Wajahat Khan, M.D.
NPI 1851393540 · Internal Medicine Physician · Elk Grove, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Wajahat Khan, M.D. is a Internal Medicine Physician provider in Elk Grove, CA (NPI 1851393540).
Provider details
- NPI number
- 1851393540
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A63233 (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
20 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
2,010 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 | 1,158 | $140 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 235 | $146 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 211 | $100 |
| Administration of Influenza Virus VaccineG0008 | 126 | $34 |
| Transitional Care Management Services for Problem of at Least Moderate Complexity99495 | 53 | $230 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 165 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 1,042 | 286 |
| Amlodipine Besylate | 861 | 251 |
| Losartan Potassium | 828 | 237 |
| Omeprazole | 538 | 165 |
| Gabapentin | 510 | 155 |
| Rosuvastatin Calcium | 491 | 158 |
| Metformin Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$17 across 1 record (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
- 2005-08-11
- Last updated
- 2020-03-17
- Certified
- 2020-03-17
Frequently asked questions
- What is Wajahat Khan's NPI number?
- Wajahat Khan's National Provider Identifier (NPI) is 1851393540, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Wajahat Khan's specialty?
- Wajahat Khan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Wajahat Khan located?
- Wajahat Khan's practice location on file with NPPES is 8220 Wymark Drive, Elk Grove, CA 95757-0000.
- What is Wajahat Khan's phone number?
- The practice phone number listed in the NPPES registry for Wajahat Khan is (916) 667-0600.
- Does Wajahat Khan accept Medicare?
- Wajahat Khan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Wajahat Khan's NPI active?
- Yes — Wajahat Khan's NPI (1851393540) is active in the NPPES registry as of the last update on 2020-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.