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IAN MICHAEL WATTENMAKER M.D.
NPI 1629077854
Orthopaedic Surgery in Leesburg, VA

Active since July 19, 2005PECOS Enrolled
19450 DEERFIELD AVENUE, SUITE 200, LEESBURG, VA 20176(703) 777-1553(703) 777-5524 Get Directions Write a Review

NPPES record last updated: March 18, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 16, 2022, May 20, 2022, May 15, 2020 (3 updates tracked since 2020).

About Ian Michael Wattenmaker M.d. NPPES

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

IAN MICHAEL WATTENMAKER M.D. (NPI 1629077854) is an individual orthopaedic surgery provider in Leesburg, Virginia, licensed in Virginia (0101049672) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1629077854
Entity TypeIndividualMale
Primary Taxonomy207X00000X
Provider Legal NameIAN MICHAEL WATTENMAKERCredential: M.D.
Location Address19450 DEERFIELD AVENUE, SUITE 200Leesburg, VA 20176-6821
Mailing Address224d Cornwall St Nw Ste 403Leesburg, VA 20176-2704 · (703) 737-6010 · Fax (703) 443-8643
Phone(703) 777-1553
Fax(703) 777-5524
Sole ProprietorNo
Enumeration DateJuly 19, 2005
Last NPPES UpdateMarch 18, 20243 updates tracked since enumeration
NPPES CertifiedMarch 18, 2024
✔ NPI 1629077854 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207X00000X
License✔ Licensed in VA · 0101049672
Definition
An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.
19450 DEERFIELD AVENUE, SUITE 200, Leesburg, VA 20176
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Other Identifiers 2

Medicaid30015845120002VA
Medicaid1629077854VA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ian Michael Wattenmaker M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Ian Wattenmaker reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Loudoun Medical Group, PC
Same address
Internal Medicine
19450 DEERFIELD AVENUE, SUITE 300
Leesburg, VA 20176
  • Reassigned Medicare billing, Virginia enrollment
  • 291 clinicians in this Medicare group
NPI 1093839599 (703) 858-3220

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20176 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
$70.08 typical visit price
range $18.07 – $138.91
Typical copayment $17.52 (range $4.51 – $34.72)
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 16

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

DR. NAUMAN J AKHTAR M.D.
Orthopaedic Surgery
19450 DEERFIELD AVENUE, SUITE 200
LEESBURG, VA 20176
Loudoun County (571) 209-1875
LOUDOUN MEDICAL GROUP, PC
Internal Medicine (Endocrinology, Diabetes & Metabolism)
19450 DEERFIELD AVENUE, SUITE 200
LEESBURG, VA 20176
Loudoun County (703) 844-8380
LOUDOUN MEDICAL GROUP, PC
Orthopaedic Surgery
19450 DEERFIELD AVENUE, SUITE 200
LEESBURG, VA 20176
Loudoun County (703) 777-3262
LOUDOUN MEDICAL GROUP, PC
Orthopaedic Surgery
19450 DEERFIELD AVENUE, SUITE 200
LEESBURG, VA 20176
Loudoun County (703) 777-3262
AMANDA LEE THACKER FNP
Nurse Practitioner (Family)
19450 DEERFIELD AVENUE, SUITE 200
LEESBURG, VA 20176
Loudoun County (703) 844-8380
LOUDOUN MEDICAL GROUP, PC
Podiatrist
19450 DEERFIELD AVENUE, SUITE 200
LEESBURG, VA 20176
Loudoun County (703) 737-6010
LOUDOUN MEDICAL GROUP, PC
Orthopaedic Surgery
19450 DEERFIELD AVENUE, SUITE 200
LEESBURG, VA 20176
Loudoun County (703) 777-3262
LOUDOUN MEDICAL GROUP, PC
Podiatrist
19450 DEERFIELD AVENUE, SUITE 200
LEESBURG, VA 20176
Loudoun County (703) 737-6001

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 Ian Wattenmaker's NPI number?

The NPI number for Ian Wattenmaker is 1629077854. It was assigned to this individual provider in the NPPES registry on July 19, 2005.

Where is Ian Wattenmaker located?

Ian Wattenmaker practices at 19450 Deerfield Avenue, Suite 200, Leesburg, VA 20176. The listed phone number is (703) 777-1553.

What is Ian Wattenmaker's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

Is Ian Wattenmaker enrolled in Medicare?

Yes. Ian Wattenmaker is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Ian Wattenmaker's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ian Wattenmaker reassigns Medicare benefits to Loudoun Medical Group, PC (Leesburg, VA). 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 Ian Wattenmaker'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 Ian Wattenmaker was last updated on March 18, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.