1. Home
  2. Directory
  3. Virginia
  4. Alexandria
  5. Internal Medicine
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. CHRISTINA PERNIA PRATHER MD
NPI 1104144534
Internal Medicine - Geriatric Medicine in Alexandria, VA

Active since May 10, 2010PECOS EnrolledAccepts Medicare Assignment
610 MADISON ST STE 101-605, ALEXANDRIA, VA 22314(571) 521-0931 Get Directions Write a Review

NPPES record last updated: September 25, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 25, 2026, Jan 11, 2019 (2 updates tracked since 2019).

About Dr. Christina Pernia Prather Md NPPES

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

DR. CHRISTINA PERNIA PRATHER MD (NPI 1104144534) is an individual geriatric medicine provider in Alexandria, Virginia, licensed in Virginia (0101276963) and active in the NPI registry since May 2010. She is enrolled in Medicare PECOS and is a graduate of University Of Maryland School Of Medicine (2010).

NPPES Registry Identity

NPI1104144534
Entity TypeIndividualFemale
Primary Taxonomy207RG0300X
Provider Legal NameDR. CHRISTINA PERNIA PRATHERCredential: MD
Location Address610 MADISON ST STE 101-605Alexandria, VA 22314-1758
Mailing Address610 Madison St Ste 101-605Alexandria, VA 22314-1758 · (571) 521-0931
Phone(571) 521-0931
Sole ProprietorNo
Medical School CMSUniversity Of Maryland School Of MedicineGraduated 2010
Enumeration DateMay 10, 2010
Last NPPES UpdateSeptember 25, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 25, 2026
✔ NPI 1104144534 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RG0300X
Licenses✔ Licensed in VA · 0101276963✔ Licensed in NC · 2013-01099✔ Licensed in DC · MD042648
Definition
An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.
Also ListedInternal MedicineTaxonomy 207R00000X · License 2013-01099 (NC)
Also ListedInternal Medicine · Hospice and Palliative MedicineTaxonomy 207RH0002X · License 0101276963 (VA)
610 MADISON ST STE 101-605, Alexandria, VA 22314
Open in Google Maps ↗

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

Dr. Christina Pernia Prather 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 ID2163657214
PECOS Enrollment IDI20150210002009
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 Christina Prather reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Medical Faculty Associates, Inc
6.1 mi
Anesthesiology
2150 PENNSYLVANIA AVE NW, SUITE 10-409A
Washington, DC 20037
  • Reassigned Medicare billing, District of Columbia enrollment
  • 1,275 clinicians in this Medicare group
NPI 1417990581 (202) 741-3350

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 6

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 high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
107 services70 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.
95 services72 patients
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212
This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.
41 services28 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
38 services38 patients
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.
28 services26 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.
27 services22 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22314 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.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
2 suppliers12 claims12 services$11.91 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
2 suppliers12 claims12 services$63.01 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Christina Prather's NPI number?

The NPI number for Christina Prather is 1104144534. It was assigned to this individual provider in the NPPES registry on May 10, 2010.

Where is Christina Prather located?

Christina Prather practices at 610 Madison St Ste 101-605, Alexandria, VA 22314. The listed phone number is (571) 521-0931.

What is Christina Prather's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

Is Christina Prather enrolled in Medicare?

Yes. Christina Prather 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 Christina Prather's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Christina Prather reassigns Medicare benefits to Medical Faculty Associates, Inc (Washington, DC). 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 Christina Prather's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Christina Prather was last updated on September 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 35 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.