Mark Hartley, MD
NPI 1285655035 · Orthopaedic Surgery Physician · Reston, VA
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Hartley, MD is a Orthopaedic Surgery Physician provider in Reston, VA (NPI 1285655035).
Provider details
- NPI number
- 1285655035
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 0101041921 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
146 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 46 | $101 |
| X-Ray of Knee, 3 Views73562 | 32 | $47 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 28 | $80 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 17 | $124 |
| X-Ray of Shoulder, Minimum of 2 Views73030 | 12 | $40 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-21
- Last updated
- 2020-10-26
- Certified
- 2020-10-26
Frequently asked questions
- What is Mark Hartley's NPI number?
- Mark Hartley's National Provider Identifier (NPI) is 1285655035, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Hartley's specialty?
- Mark Hartley is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Hartley located?
- Mark Hartley's practice location on file with NPPES is 1850 Town Center Pkwy, Reston, VA 20190-3219.
- What is Mark Hartley's phone number?
- The practice phone number listed in the NPPES registry for Mark Hartley is (703) 810-5202.
- Does Mark Hartley accept Medicare?
- Mark Hartley is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Hartley's NPI active?
- Yes — Mark Hartley's NPI (1285655035) is active in the NPPES registry as of the last update on 2020-10-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.