Kristina Kramer, M.D.
NPI 1598714511ActiveIndividual· Internal Medicine, Critical Care Medicine· Walnut Creek, CA
Internal Medicine, Critical Care Medicine (M.D.) in Walnut Creek, California, trained at Medical College of Pennsylvania (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $2,784,289 for 4,985 claims, against $300,031 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 10 companies reporting payments in 2025, $1,407 in all, mostly food and beverage.
Overview
| NPI | 1598714511 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 8, 2006 |
| Last updated in NPPES | Jan 25, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Critical Care Medicine Primary | 207RC0200X | A79481 | CA |
| Internal Medicine, Pulmonary Disease | 207RP1001X | A79481 | CA |
| Internal Medicine, Sleep Medicine | 207RS0012X | A79481 | 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 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Pulmonary Disease (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 935 |
|---|---|
| Services billed | 2,484 across 37 procedure codes |
| Paid by Medicare | $300,031 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,985 · 8,161 30-day fills |
|---|---|
| Patients | 625 |
| Total drug cost | $2,784,289 |
| Generic share | 59% of claims |
Education and affiliations
| Medical school | Medical College of Pennsylvania |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Critical Care (Intensivists) |
| Telehealth | Offers telehealth |
Medical group
- Bass Medical GroupChico, CA · 291 clinicians
Hospital affiliations
- Alta Bates Summit Medical Center - Alta Bates CampBerkeley, CA
- John Muir Medical Center - Concord CampusConcord, CA
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA
Industry payments (Open Payments)
- 2025$1,407 · 62 payments from 10 companies
- 2024$1,949 · 76 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $410.56 | 21 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $382.44 | 16 |
| Glaxosmithkline, LLC. | $286.39 | 12 |
| United Therapeutics Corporation | $131.94 | 5 |
| Insmed, Inc. | $53.49 | 2 |
What the 2025 payments were for
- Food and Beverage$1,407 · 62 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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