David Greene, MD
NPI 1104802594 · Geriatric Medicine (Internal Medicine) Physician · Santa Rosa, CA
Enrolled with Medicare as Practitioner - Geriatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Greene, MD is a Geriatric Medicine (Internal Medicine) Physician provider in Santa Rosa, CA (NPI 1104802594).
Provider details
- NPI number
- 1104802594
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 20639 (KY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
349 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 290 | $99 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 59 | $139 |
Typical Medicare-allowed amounts for these services range $99–$139 (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 · 38 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 117 | 21 |
| Amlodipine Besylate | 75 | 15 |
| Atorvastatin Calcium | 73 | 16 |
| Mirabegronbrand: Myrbetriq | 58 | — |
| Famotidine | 47 | — |
| Lisinopril | 46 | 15 |
| Losartan Potassium | 45 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$119 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
Additional practice locations (1)
- 3536 Mendocino Ave Ste 300Santa Rosa, CA 95403-3634Phone: (707) 579-6957Fax: (707) 579-6679
Registry dates
- Enumerated
- 2005-12-19
- Last updated
- 2021-06-22
- Certified
- 2021-06-22
Frequently asked questions
- What is David Greene's NPI number?
- David Greene's National Provider Identifier (NPI) is 1104802594, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Greene's specialty?
- David Greene is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is David Greene located?
- David Greene's practice location on file with NPPES is 5555 Montgomery Dr, Santa Rosa, CA 95409-8846.
- What is David Greene's phone number?
- The practice phone number listed in the NPPES registry for David Greene is (707) 579-6957.
- Does David Greene accept Medicare?
- David Greene is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Greene's NPI active?
- Yes — David Greene's NPI (1104802594) is active in the NPPES registry as of the last update on 2021-06-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.