Gregory Kogan, D.O.
NPI 1831356708 · Anesthesiology Physician · Pasadena, CA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Kogan, D.O. is a Anesthesiology Physician provider in Pasadena, CA (NPI 1831356708).
Provider details
- NPI number
- 1831356708
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 20A 9419 (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
18 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
92 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) |
|---|---|---|
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 24 | $44 |
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 21 | $139 |
| Anesthesia for Other Procedure on Lower Abdomen00840 | 13 | $305 |
| Insertion of Non-Tunneled Central Venous Tube for Infusion (5 Years Or Older)36556 | 12 | $85 |
| Anesthesia for Other Procedure on Large Bowel Using an Endoscope00811 | 11 | $132 |
| Anesthesia for Procedure on Small and Large Bowel Using an Endoscope00813 | 11 | $160 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$20 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
- 2008-05-19
- Last updated
- 2022-07-21
Frequently asked questions
- What is Gregory Kogan's NPI number?
- Gregory Kogan's National Provider Identifier (NPI) is 1831356708, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Kogan's specialty?
- Gregory Kogan is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Kogan located?
- Gregory Kogan's practice location on file with NPPES is 2923 Bradley St, Pasadena, CA 91107-1502.
- What is Gregory Kogan's phone number?
- The practice phone number listed in the NPPES registry for Gregory Kogan is (626) 795-6596.
- Does Gregory Kogan accept Medicare?
- Gregory Kogan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Kogan's NPI active?
- Yes — Gregory Kogan's NPI (1831356708) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.