ELIZABETH GREIG M.D.
NPI 1437476462
Internal Medicine in Miami, FL

Q: What is Elizabeth Greig's NPI number?

The NPI number for Elizabeth Greig is 1437476462. It was assigned to this individual provider in the NPPES registry on April 30, 2010.

Q: What is Elizabeth Greig's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Elizabeth Greig was last updated on March 17, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 30, 2010PECOS EnrolledAccepts Medicare Assignment

81.31/100

CMS Quality Rating

41214 FISHER ISLAND DR STE &41214, MIAMI, FL 33109(305) 503-8634(305) 777-9640 Get Directions Write a Review

NPPES record last updated: March 17, 2018. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Mar 17, 2018, Dec 5, 2017 (2 updates tracked since 2017).

On this page

About Elizabeth Greig M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ELIZABETH GREIG M.D. (NPI 1437476462) is an individual internal medicine provider in Miami, Florida, licensed in Florida (ME133812) and active in the NPI registry since April 2010. She is enrolled in Medicare PECOS, maintains a secondary practice location in New York, and is a graduate of University Of Miami, Lm Miller School Of Medicine (2010).

NPPES Registry Identity

NPI1437476462

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NameELIZABETH GREIGCredential: M.D.

Location Address41214 FISHER ISLAND DR STE &41214Miami, FL 33109-1255

Mailing Address41214 Fisher Island Dr Ste &41214Miami, FL 33109-1255 · (305) 503-8634 · Fax (305) 777-9640

Phone(305) 503-8634

Fax(305) 777-9640

Sole ProprietorNo

Medical School CMSUniversity Of Miami, Lm Miller School Of MedicineGraduated 2010

Enumeration DateApril 30, 2010

Last NPPES UpdateMarch 17, 20182 updates tracked since enumeration

✔ NPI 1437476462 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in FL · ME133812

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License NOT APPLICABLE

41214 FISHER ISLAND DR STE &41214, Miami, FL 33109

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Secondary Practice Location 1

Location 1505 E 70th St, Weill Cornell Internal Medicine Associates, Box 148New York, NY 10021-4872 · Phone (212) 746-2942 · Fax (212) 746-4609

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter of Alabama, AmeriHealth Caritas Next and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Elizabeth Greig M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1658506688

PECOS Enrollment IDI20180118002651

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Elizabeth Greig reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

University Of Miami

0.2 mi

Internal Medicine

41214 FISHER ISLAND DR
Miami Beach, FL 33109

Reassigned Medicare billing, Florida enrollment
3,639 clinicians in this Medicare group

NPI 1124768627 (305) 503-8634

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

62 services43 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

62 services36 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 33109 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$141.56 typical visit price

range $60.92 – $187.05

Typical copayment $35.39 (range $15.23 – $46.76)

Most-billed visit code 99204

Established Patient

$107.17 typical visit price

range $18.99 – $150.24

Typical copayment $26.79 (range $4.74 – $37.56)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

81.31/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

78.45

Promoting Interoperability

100

Improvement Activities

Cost

50.59

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Elizabeth Greig's NPI number?

The NPI number for Elizabeth Greig is 1437476462. It was assigned to this individual provider in the NPPES registry on April 30, 2010.

Where is Elizabeth Greig located?

Elizabeth Greig practices at 41214 Fisher Island Dr Ste &41214, Miami, FL 33109. The listed phone number is (305) 503-8634.

What is Elizabeth Greig's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Elizabeth Greig enrolled in Medicare?

Yes. Elizabeth Greig is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Elizabeth Greig's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Elizabeth Greig reassigns Medicare benefits to University Of Miami (Miami Beach, FL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Elizabeth Greig's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Elizabeth Greig accept?

Health plans from Ambetter Health, Ambetter of Alabama, AmeriHealth Caritas Next, Florida Blue (BlueCross BlueShield FL) and Florida Blue HMO (a BlueCross BlueShield FL company) and 1 other insurer list Elizabeth Greig as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Elizabeth Greig was last updated on March 17, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.