Karl Nazareth, MD
NPI 1962722264 · Anesthesiology Physician · Houston, TX
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karl Nazareth, MD is a Anesthesiology Physician provider in Houston, TX (NPI 1962722264).
Provider details
- NPI number
- 1962722264
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 549547 (TX)
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 tenure25% of score
16 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
601 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) |
|---|---|---|
| Injection of Anesthetic Agent And/Or Steroid Into Thigh Nerve (femoral Nerve)64447 | 140 | $43 |
| Anesthesia for Procedure for Total Knee Joint Replacement01402 | 103 | $123 |
| Injection of Anesthetic Agent And/Or Steroid Into Knee Nerve Branch Using Imaging Guidance64454 | 102 | $47 |
| Ultrasonic Guidance for Needle Placement76942 | 33 | $28 |
| Other Procedure on Nervous System64999 | 30 | $46 |
| Anesthesia for Other Procedure on Large Bowel Using an Endoscope00811 | 27 | $58 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$27 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
- 2010-06-09
- Last updated
- 2019-10-24
Frequently asked questions
- What is Karl Nazareth's NPI number?
- Karl Nazareth's National Provider Identifier (NPI) is 1962722264, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karl Nazareth's specialty?
- Karl Nazareth is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Karl Nazareth located?
- Karl Nazareth's practice location on file with NPPES is 1500 Citywest Blvd, Houston, TX 77042.
- What is Karl Nazareth's phone number?
- The practice phone number listed in the NPPES registry for Karl Nazareth is (713) 620-4000.
- Does Karl Nazareth accept Medicare?
- Karl Nazareth is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karl Nazareth's NPI active?
- Yes — Karl Nazareth's NPI (1962722264) is active in the NPPES registry as of the last update on 2019-10-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.