IAN M GREENBERG MD
NPI 1649791542
Internal Medicine - Gastroenterology in Dallas, TX

Q: What is Ian Greenberg's NPI number?

The NPI number for Ian Greenberg is 1649791542. It was assigned to this individual provider in the NPPES registry on June 29, 2017.

Q: What is Ian Greenberg's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Ian Greenberg was last updated on June 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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 June 29, 2017PECOS EnrolledAccepts Medicare Assignment

122 W COLORADO BLVD, DALLAS, TX 75208(214) 947-6700 Get Directions Write a Review

NPPES record last updated: June 6, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jun 6, 2025, May 26, 2022, Jun 29, 2017 (3 updates tracked since 2017).

On this page

About Ian M Greenberg Md NPPES

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

IAN M GREENBERG MD (NPI 1649791542) is an individual gastroenterology provider in Dallas, Texas, licensed in Texas (BP10069838) and active in the NPI registry since June 2017. He is enrolled in Medicare PECOS, is affiliated with St Lukes Magic Valley Medical Center, and maintains a secondary practice location in Twin Falls.

NPPES Registry Identity

NPI1649791542

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameIAN M GREENBERGCredential: MD

Location Address122 W COLORADO BLVDDallas, TX 75208-2382

Mailing Address3930 Mckinney Ave Apt 209Dallas, TX 75204-2042 · (503) 702-3001

Phone(214) 947-6700

Sole ProprietorNo

Medical School CMSUniversity Of Missouri, Kansas City, School Of MedicineGraduated 2017

Enumeration DateJune 29, 2017

Last NPPES UpdateJune 6, 20253 updates tracked since enumeration

NPPES CertifiedJune 6, 2025

✔ NPI 1649791542 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

Licenses✔ Licensed in TX · BP10069838✔ Licensed in ID · 4971345

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

Also ListedInternal MedicineTaxonomy 207R00000X · License 125071387 (IL)

122 W COLORADO BLVD, Dallas, TX 75208

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Secondary Practice Location 1

Location 1775 Pole Line Rd W Ste 203Twin Falls, ID 83301-5820 · Phone (208) 814-8300 · Fax (208) 933-4909

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ian M Greenberg Md 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 ID8527339621

PECOS Enrollment IDI20231101001707, I20251029003037

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.

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.

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

91 services89 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

73 services51 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St Lukes Magic Valley Medical Center

Acute Care Hospitals · Twin Falls, ID

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number130002

Location801 Pole Line Road WestTwin Falls, ID 83301 · Twin Falls County

Emergency services Birthing friendly

Medical City Arlington

Acute Care Hospitals · Arlington, TX

2/5 CMS rating

OwnershipProprietary

CMS Certification Number450675

Location3301 Matlock RoadArlington, TX 76015 · Tarrant County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 75208 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

$131.01 typical visit price

range $57.18 – $172.86

Typical copayment $32.75 (range $14.29 – $43.21)

Most-billed visit code 99204

Established Patient

$100.80 typical visit price

range $18.48 – $141.20

Typical copayment $25.20 (range $4.62 – $35.30)

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.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MRS. RASHONDRA CALDERON FNP

Nurse Practitioner (Family)

122 W COLORADO BLVD
DALLAS, TX 75208

Dallas County (214) 947-6700

FARUKH GABRIEL IKRAM MD

Internal Medicine

122 W COLORADO BLVD
DALLAS, TX 75208

Dallas County (214) 947-2385

DR. LEIGH K HUNTER MD

Internal Medicine (Infectious Disease)

122 W COLORADO BLVD
DALLAS, TX 75208

Dallas County (214) 947-6700

AARON B HOFFMAN MD

Surgery

122 W COLORADO BLVD
DALLAS, TX 75208

Dallas County (214) 947-6700

SHEILA ALLISON DOUGAN APRN, FNP-BC

Nurse Practitioner (Family)

122 W COLORADO BLVD
DALLAS, TX 75208

Dallas County (214) 947-6783

AVANI PATEL PHARM.D.

Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)

122 W COLORADO BLVD, 2ND FLOOR
DALLAS, TX 75208

Dallas County (214) 947-6742

DR. RALPH MICHAEL STEIGER M.D.

Obstetrics & Gynecology (Maternal & Fetal Medicine)

122 W COLORADO BLVD
DALLAS, TX 75208

Dallas County (214) 947-6700

ANGELA THEOBALD APRN, AGPCNP-BC

Nurse Practitioner (Primary Care)

122 W COLORADO BLVD
DALLAS, TX 75208

Dallas County (214) 947-6700

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 Ian Greenberg's NPI number?

The NPI number for Ian Greenberg is 1649791542. It was assigned to this individual provider in the NPPES registry on June 29, 2017.

Where is Ian Greenberg located?

Ian Greenberg practices at 122 W Colorado Blvd, Dallas, TX 75208. The listed phone number is (214) 947-6700.

What is Ian Greenberg's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Ian Greenberg enrolled in Medicare?

Yes. Ian Greenberg 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.

What insurance does Ian Greenberg accept?

Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and Ambetter from Superior HealthPlan and 7 other insurers list Ian Greenberg 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.

Is Ian Greenberg affiliated with any hospitals?

According to CMS data, Ian Greenberg is affiliated with St Lukes Magic Valley Medical Center and Medical City Arlington.

When was this NPI record last updated?

The NPPES record for Ian Greenberg was last updated on June 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.