Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. GREGORY RICHARD CZAJA MD
NPI 1225390461
Internal Medicine - Interventional Cardiology in Bethesda, MD

Active since June 13, 2012PECOS EnrolledAccepts Medicare Assignment
8901 ROCKVILLE PIKE, BETHESDA, MD 20889(301) 295-4500 Get Directions Write a Review

NPPES record last updated: August 11, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Aug 11, 2026, Jun 25, 2025, May 3, 2024 and 2 more (5 updates tracked since 2018).

About Dr. Gregory Richard Czaja Md NPPES

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

DR. GREGORY RICHARD CZAJA MD (NPI 1225390461) is an individual interventional cardiology provider in Bethesda, Maryland, licensed in Virginia (0101290423) and active in the NPI registry since June 2012. He is enrolled in Medicare PECOS and is a graduate of Other (2012).

NPPES Registry Identity

NPI1225390461
Entity TypeIndividualMale
Primary Taxonomy207RI0011X
Provider Legal NameDR. GREGORY RICHARD CZAJACredential: MD
Location Address8901 ROCKVILLE PIKEBethesda, MD 20889-0001
Mailing Address8901 Rockville PikeBethesda, MD 20889-0001 · (301) 295-4500
Sole ProprietorNo
Medical School CMSOtherGraduated 2012
Enumeration DateJune 13, 2012
Last NPPES UpdateAugust 11, 20265 updates tracked since enumeration
NPPES CertifiedAugust 11, 2026
NPI 1225390461 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal Medicine · Interventional CardiologyAllopathic & Osteopathic Physicians
Taxonomy Code207RI0011X
License Licensed in VA · 0101290423
Definition
An area of medicine within the subspecialty of cardiology, which uses specialized imaging and other diagnostic techniques to evaluate blood flow and pressure in the coronary arteries and chambers of the heart and uses technical procedures and medications to treat abnormalities that impair the function of the cardiovascular system.
Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X · License 0101290423 (VA)
8901 ROCKVILLE PIKE, Bethesda, MD 20889

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

Dr. Gregory Richard Czaja 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 ID1759625304
PECOS Enrollment IDI20240515004341
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20889 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
$147.85 typical visit price
range $65.18 – $194.86
Typical copayment $36.96 (range $16.29 – $48.71)
Most-billed visit code 99204
Established Patient
$113.72 typical visit price
range $21.40 – $158.88
Typical copayment $28.43 (range $5.35 – $39.72)
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.

Dermatology (Dermatopathology)
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Surgery
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Internal Medicine (Endocrinology, Diabetes & Metabolism)
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Obstetrics & Gynecology
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Anesthesiology
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Internal Medicine
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Military Health Care Provider
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Emergency Medicine
8901 ROCKVILLE PIKE
BETHESDA, MD 20889

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 Gregory Czaja's NPI number?

The NPI number for Gregory Czaja is 1225390461. It was assigned to this individual provider in the NPPES registry on June 13, 2012.

Where is Gregory Czaja located?

Gregory Czaja practices at 8901 Rockville Pike, Bethesda, MD 20889. The listed phone number is (301) 295-4500.

What is Gregory Czaja's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.

Is Gregory Czaja enrolled in Medicare?

Yes. Gregory Czaja 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.

When was this NPI record last updated?

The NPPES record for Gregory Czaja was last updated on August 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 26 days 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.