Diana Mcnulty
NPI 1215900105 · Internal Medicine Physician · Freeport, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Mcnulty is a Internal Medicine Physician provider in Freeport, IL (NPI 1215900105).
Provider details
- NPI number
- 1215900105
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- 036103840 (IL)
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
20 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
1,877 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 586 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 440 | $122 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 397 | $16 |
| Administration of Influenza Virus VaccineG0008 | 179 | $16 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 96 | $86 |
| X-Ray of Chest, 2 Views |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 174 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 719 | 185 |
| Lisinopril | 433 | 106 |
| Levothyroxine Sodium | 427 | 101 |
| Amlodipine Besylate | 304 | 80 |
| Pantoprazole Sodium | 297 | 86 |
| Metoprolol Succinate | 296 | 77 |
| Hydrochlorothiazide |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-10
- Last updated
- 2017-10-23
Frequently asked questions
- What is Diana Mcnulty's NPI number?
- Diana Mcnulty's National Provider Identifier (NPI) is 1215900105, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Mcnulty's specialty?
- Diana Mcnulty is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Diana Mcnulty located?
- Diana Mcnulty's practice location on file with NPPES is 1010 Fairway Dr, Freeport, IL 61032-6600.
- What is Diana Mcnulty's phone number?
- The practice phone number listed in the NPPES registry for Diana Mcnulty is (815) 599-7880.
- Does Diana Mcnulty accept Medicare?
- Diana Mcnulty is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Mcnulty's NPI active?
- Yes — Diana Mcnulty's NPI (1215900105) is active in the NPPES registry as of the last update on 2017-10-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.