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JAMES D GEREN DDS
NPI 1639544455
Dentist in Alexandria, VA

Active since December 04, 2015Opted out of Medicare · through Oct 6, 2027
8101 HINSON FARM RD STE 114, ALEXANDRIA, VA 22306(703) 360-5881 Get Directions Write a Review

NPPES record last updated: December 4, 2015. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About James D Geren Dds NPPES

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

JAMES D GEREN DDS (NPI 1639544455) is an individual dentist in Alexandria, Virginia, licensed in Virginia (0401006164) and active in the NPI registry since December 2015. He has opted out of Medicare through October 6, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1639544455
Entity TypeIndividualMale
Primary Taxonomy122300000X
Provider Legal NameJAMES D GERENCredential: DDS
Location Address8101 HINSON FARM RD STE 114Alexandria, VA 22306-3404
Mailing Address8101 Hinson Farm Rd Ste 114Alexandria, VA 22306-3404 · (703) 360-5881
Phone(703) 360-5881
Sole ProprietorNo
Enumeration DateDecember 4, 2015
✔ NPI 1639544455 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentistDental Providers
Taxonomy Code122300000X
License✔ Licensed in VA · 0401006164
Definition
A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist.
8101 HINSON FARM RD STE 114, Alexandria, VA 22306
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

James D Geren Dds has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from October 6, 2013 through October 6, 2027.

Opt-Out Effective DateOctober 6, 2013
Opt-Out In Effect ThroughOctober 6, 2027Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22306 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
$100.31 typical visit price
range $65.18 – $194.86
Typical copayment $25.07 (range $16.29 – $48.71)
Most-billed visit code 99203
Established Patient
$80.66 typical visit price
range $21.40 – $158.88
Typical copayment $20.16 (range $5.35 – $39.72)
Most-billed visit code 99213
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 2

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

MOUNT VERNON DENTAL CARE
Dentist
8101 HINSON FARM RD STE 114
ALEXANDRIA, VA 22306
Fairfax County (703) 360-5881
GD VA MOUNT VERNON PLLC
Dentist (General Practice)
8101 HINSON FARM RD STE 114
ALEXANDRIA, VA 22306
Fairfax County (703) 360-5881

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 James Geren's NPI number?

The NPI number for James Geren is 1639544455. It was assigned to this individual provider in the NPPES registry on December 4, 2015.

Where is James Geren located?

James Geren practices at 8101 Hinson Farm Rd Ste 114, Alexandria, VA 22306. The listed phone number is (703) 360-5881.

What is James Geren's specialty?

The primary specialty registered for this NPI is Dentist with taxonomy code 122300000X.

Is James Geren enrolled in Medicare?

No. James Geren has opted out of Medicare through October 6, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for James Geren was last updated on December 4, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.