Mark Kogan, M.D.
NPI 1780690313 · Gastroenterology Physician · San Pablo, CA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Kogan, M.D. is a Gastroenterology Physician provider in San Pablo, CA (NPI 1780690313).
Provider details
- NPI number
- 1780690313
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G60809 (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
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,430 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) |
|---|---|---|
| Chronic Care Management Services for Two Or More Chronic Conditions, Additional 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99439 | 1,109 | $59 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 641 | $76 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 122 | $156 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 118 | $112 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 89 | $136 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 204 | 67 |
| Pantoprazole Sodium | 115 | 39 |
| Dicyclomine Hcl | 64 | 18 |
| Sod Sulf/Pot Chloride/Mag Sulfbrand: Sutab | 62 | 57 |
| Famotidine | 44 | 12 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-C | 44 | 44 |
| Linaclotidebrand: Linzess | 35 | 14 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$638 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
Additional practice locations (1)
- 2450 Ashby AveBerkeley, CA 94705-2067Phone: (510) 204-4444
Registry dates
- Enumerated
- 2006-08-01
- Last updated
- 2025-03-11
- Certified
- 2025-03-11
Frequently asked questions
- What is Mark Kogan's NPI number?
- Mark Kogan's National Provider Identifier (NPI) is 1780690313, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Kogan's specialty?
- Mark Kogan is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Kogan located?
- Mark Kogan's practice location on file with NPPES is 2089 Vale Rd, San Pablo, CA 94806-3847.
- What is Mark Kogan's phone number?
- The practice phone number listed in the NPPES registry for Mark Kogan is (510) 234-5012.
- Does Mark Kogan accept Medicare?
- Mark Kogan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Kogan's NPI active?
- Yes — Mark Kogan's NPI (1780690313) is active in the NPPES registry as of the last update on 2025-03-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.