Madelaine Greacen, MD
NPI 1881182624 · Family Medicine Physician · Santa Rosa, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Madelaine Greacen, MD is a Family Medicine Physician provider in Santa Rosa, CA (NPI 1881182624).
Provider details
- NPI number
- 1881182624
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
639 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 333 | $141 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 162 | $100 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 48 | $143 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 38 | $16 |
| Hemoglobin A1c Level83036 | 22 | $10 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 79 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 200 | 74 |
| Levothyroxine Sodium | 182 | 72 |
| Amlodipine Besylate | 119 | 37 |
| Losartan Potassium | 98 | 37 |
| Trazodone Hcl | 89 | 36 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 79 | 24 |
Practice location
Mailing address
Additional practice locations (1)
- 325 Wellesley RdSyracuse, NY 13207-1630Phone: (315) 440-4216
Registry dates
- Enumerated
- 2018-04-26
- Last updated
- 2021-10-04
- Certified
- 2021-10-04
Frequently asked questions
- What is Madelaine Greacen's NPI number?
- Madelaine Greacen's National Provider Identifier (NPI) is 1881182624, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Madelaine Greacen's specialty?
- Madelaine Greacen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Madelaine Greacen located?
- Madelaine Greacen's practice location on file with NPPES is 1162 Montgomery Dr Ste 200, Santa Rosa, CA 95405-4802.
- What is Madelaine Greacen's phone number?
- The practice phone number listed in the NPPES registry for Madelaine Greacen is (707) 890-4100.
- Does Madelaine Greacen accept Medicare?
- Madelaine Greacen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Madelaine Greacen's NPI active?
- Yes — Madelaine Greacen's NPI (1881182624) is active in the NPPES registry as of the last update on 2021-10-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.