Mark Callanan, MD
NPI 1639515984 · Orthopaedic Surgery Physician · Shreveport, LA
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Callanan, MD is a Orthopaedic Surgery Physician provider in Shreveport, LA (NPI 1639515984).
Provider details
- NPI number
- 1639515984
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- L-255690 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
13 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,429 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 595 | $85 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 291 | $66 |
| X-Ray of Shoulder, Minimum of 2 Views73030 | 250 | $31 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 67 | $105 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 44 | $126 |
| X-Ray of Hip, 2-3 Views73502 | 41 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Diclofenac Sodium | 101 | 55 |
| Tramadol Hcl | 85 | 40 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 57 | 37 |
| Meloxicam | 49 | 21 |
| Methocarbamol | 31 | 14 |
| Gabapentin | 21 | — |
| Methylprednisolone | 20 | 18 |
| Ibuprofen |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$719 across 6 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- Massachusetts General Hospital55 Fruit St.Boston, MA 02114Phone: (617) 726-2942
- Massachusetts General Hospital55 Fruit St.Boston, MA 02114Phone: (617) 726-2942
Registry dates
- Enumerated
- 2013-05-14
- Last updated
- 2021-06-21
- Certified
- 2021-06-21
Frequently asked questions
- What is Mark Callanan's NPI number?
- Mark Callanan's National Provider Identifier (NPI) is 1639515984, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Callanan's specialty?
- Mark Callanan is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Callanan located?
- Mark Callanan's practice location on file with NPPES is 7925 Youree Dr Ste 200, Shreveport, LA 71105.
- What is Mark Callanan's phone number?
- The practice phone number listed in the NPPES registry for Mark Callanan is (318) 212-3610.
- Does Mark Callanan accept Medicare?
- Mark Callanan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Callanan's NPI active?
- Yes — Mark Callanan's NPI (1639515984) is active in the NPPES registry as of the last update on 2021-06-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.