Brian Mulder, APN
NPI 1558791459 · Nurse Practitioner · Rockford, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian Mulder, APN is a Nurse Practitioner provider in Rockford, IL (NPI 1558791459).
Provider details
- NPI number
- 1558791459
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APN
- Sex
- Male
- Sole proprietor
- No
- License
- 209-010871 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 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
1,349 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 | 852 | $74 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 91 | $60 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 86 | $91 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 84 | $103 |
| X-Ray of Lower and Sacral Spine, Minimum of 4 Views72110 | 52 | $11 |
| Aspiration And/Or Injection of Fluid Large Joint Using Ultrasound Guidance |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 287 | 125 |
| Methylprednisolone | 166 | 156 |
| Tramadol Hcl | 44 | 33 |
| Alprazolam | 40 | 39 |
| Tizanidine Hcl | 36 | 31 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 31 | 22 |
| Pregabalin | 24 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-11-14
- Last updated
- 2023-08-11
- Certified
- 2023-08-11
Frequently asked questions
- What is Brian Mulder's NPI number?
- Brian Mulder's National Provider Identifier (NPI) is 1558791459, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Mulder's specialty?
- Brian Mulder is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Brian Mulder located?
- Brian Mulder's practice location on file with NPPES is 5875 E Riverside Blvd, Rockford, IL 61114-4937.
- What is Brian Mulder's phone number?
- The practice phone number listed in the NPPES registry for Brian Mulder is (815) 398-9491.
- Does Brian Mulder accept Medicare?
- Brian Mulder is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian Mulder's NPI active?
- Yes — Brian Mulder's NPI (1558791459) is active in the NPPES registry as of the last update on 2023-08-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.