Brian Flanagan, M.D.
NPI 1336428010 · Adult Reconstructive Orthopaedic Surgery Physician · Crystal Lake, IL
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian Flanagan, M.D. is a Adult Reconstructive Orthopaedic Surgery Physician provider in Crystal Lake, IL (NPI 1336428010).
Provider details
- NPI number
- 1336428010
- Entity type
- Individual
- Primary specialty
- Adult Reconstructive Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036-142459 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
14 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,927 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 | 781 | $89 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 635 | $78 |
| X-Ray of Knee, 3 Views73562 | 523 | $45 |
| X-Ray of Hip, 1 View73501 | 267 | $31 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 161 | $126 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 124 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Celecoxib | 499 | 202 |
| Tramadol Hcl | 389 | 241 |
| Meloxicam | 317 | 154 |
| Methylprednisolone | 233 | 204 |
| Diclofenac Sodium | 194 | 127 |
| Cefadroxil | 153 | 137 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 149 | 125 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$508 across 10 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 (1)
- 10370 Haligus Rd Ste 201Huntley, IL 60142-9582Phone: (815) 356-5200Fax: (815) 356-5262
Registry dates
- Enumerated
- 2011-08-11
- Last updated
- 2018-10-19
Frequently asked questions
- What is Brian Flanagan's NPI number?
- Brian Flanagan's National Provider Identifier (NPI) is 1336428010, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Flanagan's specialty?
- Brian Flanagan is listed in the NPPES registry with a primary specialty of Adult Reconstructive Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Flanagan located?
- Brian Flanagan's practice location on file with NPPES is 420 N Il Route 31, Crystal Lake, IL 60012.
- What is Brian Flanagan's phone number?
- The practice phone number listed in the NPPES registry for Brian Flanagan is (815) 356-5200.
- Does Brian Flanagan accept Medicare?
- Brian Flanagan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian Flanagan's NPI active?
- Yes — Brian Flanagan's NPI (1336428010) is active in the NPPES registry as of the last update on 2018-10-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.