Lauren C. Gannon, MD
NPI 1003012733ActiveIndividual· Internal Medicine· Pleasant Hill, CA
Internal Medicine (MD) in Pleasant Hill, California, trained at Wayne State University School of Medicine (class of 2007). Their prescriptions cost Medicare Part D more than their services did: $254,339 for 3,444 claims, against $53,340 paid for services in 2024. Exact Sciences Corporation was the largest of 2 companies reporting payments in 2025, $59.30 in all, mostly food and beverage.
Overview
| NPI | 1003012733 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 21, 2007 |
| Last updated in NPPES | Jul 6, 2021 |
| Certified by provider | Jul 6, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A105771 | CA |
| Pediatrics | 208000000X | A105771 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 249 |
|---|---|
| Services billed | 1,101 across 38 procedure codes |
| Paid by Medicare | $53,340 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,444 · 8,347 30-day fills |
|---|---|
| Patients | 410 |
| Total drug cost | $254,339 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | Wayne State University School of Medicine |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Pediatric Medicine |
| Telehealth | Offers telehealth |
Medical group
- John Muir Physician NetworkPleasant Hill, CA · 494 clinicians
Hospital affiliations
- John Muir Medical Center - Concord CampusConcord, CA
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA
Other facilities
- John Muir Home Health ServicesHome health agency · Concord, CA
Industry payments (Open Payments)
- 2025$59.30 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exact Sciences Corporation | $29.69 | 1 |
| Dexcom, Inc. | $29.61 | 1 |
What the 2025 payments were for
- Food and Beverage$59.30 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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