Mark Kubik, MD
NPI 1174746325 · Geriatric Medicine (Internal Medicine) Physician · Greenbrae, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Kubik, MD is a Geriatric Medicine (Internal Medicine) Physician provider in Greenbrae, CA (NPI 1174746325).
Provider details
- NPI number
- 1174746325
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G35704 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
346 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 148 | $86 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 138 | $153 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 43 | $109 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 17 | $123 |
Typical Medicare-allowed amounts for these services range $86–$153 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 58 | 11 |
| Amlodipine Besylate | 55 | 14 |
| Apixabanbrand: Eliquis | 28 | — |
| Losartan Potassium | 26 | — |
| Atorvastatin Calcium | 23 | — |
| Metoprolol Succinate | 20 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-04-10
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mark Kubik's NPI number?
- Mark Kubik's National Provider Identifier (NPI) is 1174746325, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Kubik's specialty?
- Mark Kubik is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Kubik located?
- Mark Kubik's practice location on file with NPPES is 501 Via Casitas, Greenbrae, CA 94904.
- What is Mark Kubik's phone number?
- The practice phone number listed in the NPPES registry for Mark Kubik is (415) 464-1770.
- Does Mark Kubik accept Medicare?
- Mark Kubik is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Kubik's NPI active?
- Yes — Mark Kubik's NPI (1174746325) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.