Elizabeth Greig, M.D.
NPI 1437476462 · Internal Medicine Physician · Miami, FL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Elizabeth Greig, M.D. is a Internal Medicine Physician provider in Miami, FL (NPI 1437476462).
Provider details
- NPI number
- 1437476462
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- NOT APPLICABLE
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
16 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
124 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 62 | $96 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 62 | $134 |
Typical Medicare-allowed amounts for these services range $96–$134 (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)
- 505 E 70th StWeill Cornell Internal Medicine Associates, Box 148New York, NY 10021-4872Phone: (212) 746-2942Fax: (212) 746-4609
Registry dates
- Enumerated
- 2010-04-30
- Last updated
- 2018-03-17
Frequently asked questions
- What is Elizabeth Greig's NPI number?
- Elizabeth Greig's National Provider Identifier (NPI) is 1437476462, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Elizabeth Greig's specialty?
- Elizabeth Greig is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Elizabeth Greig located?
- Elizabeth Greig's practice location on file with NPPES is 41214 Fisher Island Dr Ste &41214, Miami, FL 33109-1255.
- What is Elizabeth Greig's phone number?
- The practice phone number listed in the NPPES registry for Elizabeth Greig is (305) 503-8634.
- Does Elizabeth Greig accept Medicare?
- Elizabeth Greig is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Elizabeth Greig's NPI active?
- Yes — Elizabeth Greig's NPI (1437476462) is active in the NPPES registry as of the last update on 2018-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.