Margaret Greenwood-Ericksen, MD
NPI 1699040048 · Emergency Medicine Physician · Albuquerque, NM
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Greenwood-Ericksen, MD is a Emergency Medicine Physician provider in Albuquerque, NM (NPI 1699040048).
Provider details
- NPI number
- 1699040048
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 4301109578 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
14 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
39 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) |
|---|---|---|
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 23 | $125 |
| Critical Care, First 30-74 Minutes99291 | 16 | $217 |
Typical Medicare-allowed amounts for these services range $125–$217 (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.
Practice location
Mailing address
Additional practice locations (1)
- 1500 East Medical Center DriveB1 Floor University Hospital Recp EmegencyAnn Arbor, MI 48109-5301Phone: (734) 936-6666
Registry dates
- Enumerated
- 2012-03-19
- Last updated
- 2025-03-10
- Certified
- 2025-03-10
Frequently asked questions
- What is Margaret Greenwood-Ericksen's NPI number?
- Margaret Greenwood-Ericksen's National Provider Identifier (NPI) is 1699040048, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Greenwood-Ericksen's specialty?
- Margaret Greenwood-Ericksen is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Greenwood-Ericksen located?
- Margaret Greenwood-Ericksen's practice location on file with NPPES is 1 University of New Mexico Msc116025, Albuquerque, NM 87131-5301.
- What is Margaret Greenwood-Ericksen's phone number?
- The practice phone number listed in the NPPES registry for Margaret Greenwood-Ericksen is (505) 272-5062.
- Does Margaret Greenwood-Ericksen accept Medicare?
- Margaret Greenwood-Ericksen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Greenwood-Ericksen's NPI active?
- Yes — Margaret Greenwood-Ericksen's NPI (1699040048) is active in the NPPES registry as of the last update on 2025-03-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.