CAROLY LUCY GUILLEN AGUIRRE MD
NPI 1104566553
Internal Medicine in Waldorf, MD

Active since March 31, 2022PECOS Enrolled
12107 OLD LINE CTR, WALDORF, MD 20602(240) 207-6450 Get Directions Write a Review

NPPES record last updated: February 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Caroly Lucy Guillen Aguirre Md NPPES

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

CAROLY LUCY GUILLEN AGUIRRE MD (NPI 1104566553) is an individual internal medicine provider in Waldorf, Maryland, licensed in Maryland (D0103670) and active in the NPI registry since March 2022. She is enrolled in Medicare PECOS and is a graduate of Other (2014).

NPPES Registry Identity

NPI1104566553
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameCAROLY LUCY GUILLEN AGUIRRECredential: MD
Location Address12107 OLD LINE CTRWaldorf, MD 20602-2552
Mailing Address8250 Westpark Dr Apt 570Mc Lean, VA 22102-3178 · (703) 505-2563
Sole ProprietorNo
Medical School CMSOtherGraduated 2014
Enumeration DateMarch 31, 2022
Last NPPES UpdateFebruary 13, 2026
NPPES CertifiedFebruary 13, 2026
NPI 1104566553 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in MD · D0103670
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.
12107 OLD LINE CTR, Waldorf, MD 20602

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Caroly Lucy Guillen Aguirre Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8921573171
PECOS Enrollment IDI20260406003279
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 20602 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
$133.05 typical visit price
range $57.99 – $175.57
Typical copayment $33.26 (range $14.49 – $43.89)
Most-billed visit code 99204
Established Patient
$102.11 typical visit price
range $18.66 – $143.02
Typical copayment $25.52 (range $4.66 – $35.75)
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

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

Surgery (Vascular Surgery)
12107 OLD LINE CTR
WALDORF, MD 20602

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 Caroly Guillen Aguirre's NPI number?

The NPI number for Caroly Guillen Aguirre is 1104566553. It was assigned to this individual provider in the NPPES registry on March 31, 2022.

Where is Caroly Guillen Aguirre located?

Caroly Guillen Aguirre practices at 12107 Old Line Ctr, Waldorf, MD 20602. The listed phone number is (240) 207-6450.

What is Caroly Guillen Aguirre's specialty?

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

Is Caroly Guillen Aguirre enrolled in Medicare?

Yes. Caroly Guillen Aguirre is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Caroly Guillen Aguirre was last updated on February 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.