MARIELIZ VERONICA ALONSO CALDERON M.D.
NPI 1295990018
Psychiatry & Neurology - Geriatric Psychiatry in Fairfax, VA

Q: What is Marieliz Alonso Calderon's NPI number?

The NPI number for Marieliz Alonso Calderon is 1295990018. It was assigned to this individual provider in the NPPES registry on July 21, 2008.

Q: What is Marieliz Alonso Calderon's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Geriatric Psychiatry, with taxonomy code 2084P0805X.

Active since July 21, 2008PECOS EnrolledAccepts Medicare Assignment

8221 WILLOW OAKS CORPORATE DR, FAIRFAX, VA 22031(703) 289-7599 Get Directions Write a Review

NPPES record last updated: March 11, 2024. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About Marieliz Veronica Alonso Calderon M.d. NPPES

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

MARIELIZ VERONICA ALONSO CALDERON M.D. (NPI 1295990018) is an individual geriatric psychiatry provider in Fairfax, Virginia, licensed in Virginia (0101270761) and active in the NPI registry since July 2008. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of New York Medical College (2008).

NPPES Registry Identity

NPI1295990018

Entity TypeIndividualFemale

Primary Taxonomy2084P0805X

Provider Legal NameMARIELIZ VERONICA ALONSO CALDERONCredential: M.D.

Location Address8221 WILLOW OAKS CORPORATE DRFairfax, VA 22031-4512

Mailing AddressPo Box 37174Baltimore, MD 21297-3174 · (571) 423-5699 · Fax (571) 423-5698

Phone(703) 289-7599

Sole ProprietorYes

Medical School CMSNew York Medical CollegeGraduated 2008

Enumeration DateJuly 21, 2008

Last NPPES UpdateMarch 11, 2024

NPPES CertifiedMarch 11, 2024

✔ NPI 1295990018 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · Geriatric PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0805X

Licenses✔ Licensed in VA · 0101270761✔ Licensed in NY · 268925

Definition

Geriatric Psychiatry is a subspecialty with psychiatric expertise in prevention, evaluation, diagnosis and treatment of mental and emotional disorders in the elderly, and improvement of psychiatric care for healthy and ill elderly patients.

8221 WILLOW OAKS CORPORATE DR, Fairfax, VA 22031

Open in Google Maps ↗

Secondary Practice Locations 2

Location 1234 E 149th StBronx, NY 10451-5504 · Phone (718) 579-5779

Location 28500 Executive Park Ave Ste 202Fairfax, VA 22031-2253 · Phone (703) 852-7020 · Fax (703) 289-4612

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

Marieliz Veronica Alonso Calderon 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 ID5193949907

PECOS Enrollment IDI20210312001972

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.

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.

629 services150 patients

Psychiatric diagnostic evaluation with medical services 90792

A psychiatric diagnostic evaluation with medical services is a comprehensive assessment. It includes a detailed examination of your mental health and physical wellbeing, as well as your personal and family history. This evaluation aids in creating an effective treatment plan.

42 services42 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22031 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

$194.86 typical visit price

range $65.18 – $194.86

Typical copayment $48.71 (range $16.29 – $48.71)

Most-billed visit code 99205

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.

CONNIE LEE MD

Psychiatry & Neurology (Psychiatry)