Omar Khayyat, MD
NPI 1649711862 · Internal Medicine Physician · Chula Vista, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Omar Khayyat, MD is a Internal Medicine Physician provider in Chula Vista, CA (NPI 1649711862).
Provider details
- NPI number
- 1649711862
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
9 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,259 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 | 280 | $137 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 184 | $120 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 174 | $67 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 98 | $7 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 62 | $97 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 73 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 311 | 65 |
| Amlodipine Besylate | 276 | 53 |
| Metformin Hcl | 194 | 39 |
| Losartan Potassium | 178 | 35 |
| Pantoprazole Sodium | 148 | 34 |
| Gabapentin | 129 | 43 |
| Tamsulosin Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$507 across 19 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
- 2017-03-20
- Last updated
- 2020-06-20
- Certified
- 2020-06-20
Frequently asked questions
- What is Omar Khayyat's NPI number?
- Omar Khayyat's National Provider Identifier (NPI) is 1649711862, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Omar Khayyat's specialty?
- Omar Khayyat is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Omar Khayyat located?
- Omar Khayyat's practice location on file with NPPES is 435 H St, Chula Vista, CA 91910-4307.
- What is Omar Khayyat's phone number?
- The practice phone number listed in the NPPES registry for Omar Khayyat is (619) 691-7000.
- Does Omar Khayyat accept Medicare?
- Omar Khayyat is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Omar Khayyat's NPI active?
- Yes — Omar Khayyat's NPI (1649711862) is active in the NPPES registry as of the last update on 2020-06-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.