1. Home
  2. Directory
  3. Virginia
  4. Manassas
  5. Family Medicine
  6. NPI Profile

DR. PIERRE MAWESA DIOMI JR. MD
NPI 1619521051
Family Medicine in Manassas, VA

Active since July 24, 2019PECOS EnrolledAccepts Medicare Assignment
10076 DUMFRIES ROAD #80A, MANASSAS, VA 20110(703) 424-9911(888) 814-0934 Get Directions Write a Review

NPPES record last updated: March 8, 2022. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Mar 8, 2022, Jun 12, 2020, Nov 25, 2019 and 1 more (4 updates tracked since 2019).

About Dr. Pierre Mawesa Diomi Jr. Md NPPES

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

DR. PIERRE MAWESA DIOMI JR. MD (NPI 1619521051) is an individual family medicine provider in Manassas, Virginia, licensed in Virginia (0101268945) and active in the NPI registry since July 2019. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2011).

NPPES Registry Identity

NPI1619521051
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameDR. PIERRE MAWESA DIOMI JR.Credential: MD
Location Address10076 DUMFRIES ROAD #80AManassas, VA 20110
Mailing AddressPo Box 8611Silver Spring, MD 20907-8611 · (202) 763-0897
Phone(703) 424-9911
Fax(888) 814-0934
Sole ProprietorYes
Medical School CMSOtherGraduated 2011
Enumeration DateJuly 24, 2019
Last NPPES UpdateMarch 8, 20224 updates tracked since enumeration
NPPES CertifiedFebruary 22, 2022
✔ NPI 1619521051 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in VA · 0101268945
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
Also ListedGeneral PracticeTaxonomy 208D00000X · License 0101268945 (VA), 21490 (PR)

Secondary Practice Locations 2

Location 1315 W 10th StFront Royal, VA 22630-2807 · Phone (540) 252-0033
Location 2Carr. 21 Num. 1785 Ave. Las Lomas #21San Juan, PR 00921 · Phone (787) 782-9999

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. Pierre Mawesa Diomi Jr. 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 ID7517297864
PECOS Enrollment IDI20210614002435
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 Reassignments

3

Medicare enrollment records show Pierre Diomi reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Accessible Physician Home Care, LLC
General Practice
5860 COLUMBIA PIKE, SUITE 105
Falls Church, VA 22041
  • Reassigned Medicare billing, District of Columbia enrollment
  • 14 clinicians in this Medicare group
NPI 1235497892 (703) 348-9111
Parktown Medical Associates LLC
Urgent Care
10076 DUMFRIES RD STE 80A
Manassas, VA 20110
  • Reassigned Medicare billing, Virginia enrollment
  • 2 clinicians in this Medicare group
NPI 1356114474 (703) 424-9911
Valley Patient Care Inc
Urgent Care
315 W 10TH ST
Front Royal, VA 22630
  • Reassigned Medicare billing, Virginia enrollment
  • 2 clinicians in this Medicare group
NPI 1790368553 (540) 252-0033

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 9

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.
129 services55 patients
Injection of drug or substance under skin or into muscle 96372
This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.
42 services15 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
41 services41 patients
Detection test by immunoassay with direct visual observation for influenza virus 87804
This is a test that identifies the influenza virus in your body. It works by using an immunoassay, a method that detects the presence of the virus through an immune response. The results are directly observable, making it a quick and efficient way to diagnose flu.
40 services17 patients
Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus 87426
An immunoassay test for severe acute respiratory syndrome coronavirus is a diagnostic tool. It uses your body's immune response to detect the presence of the virus. It involves taking a sample, usually from your nose or throat, which is then analyzed in a lab for signs of the virus.
24 services21 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.
23 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20110 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
$86.88 typical visit price
range $56.19 – $170.30
Typical copayment $21.72 (range $14.04 – $42.57)
Most-billed visit code 99203
Established Patient
$99.13 typical visit price
range $18.07 – $138.91
Typical copayment $24.78 (range $4.51 – $34.72)
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.

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 Pierre Diomi's NPI number?

The NPI number for Pierre Diomi is 1619521051. It was assigned to this individual provider in the NPPES registry on July 24, 2019.

Where is Pierre Diomi located?

Pierre Diomi practices at 10076 Dumfries Road #80a, Manassas, VA 20110. The listed phone number is (703) 424-9911.

What is Pierre Diomi's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Pierre Diomi enrolled in Medicare?

Yes. Pierre Diomi 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 organizations bill Medicare for Pierre Diomi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Pierre Diomi reassigns Medicare benefits to 3 organizations: Accessible Physician Home Care, LLC (Falls Church, VA), Parktown Medical Associates LLC (Manassas, VA) and Valley Patient Care Inc (Front Royal, VA). Each 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 Pierre Diomi'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 Pierre Diomi was last updated on March 8, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.