James Gapinski, MD
NPI 1922114768 · Sleep Medicine (Internal Medicine) Physician · Green Bay, WI
Enrolled with Medicare as Practitioner - Sleep Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Gapinski, MD is a Sleep Medicine (Internal Medicine) Physician provider in Green Bay, WI (NPI 1922114768).
Provider details
- NPI number
- 1922114768
- Entity type
- Individual
- Primary specialty
- Sleep Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 32447-20 (WI)
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 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
474 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 | 280 | $84 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 43 | $153 |
| Home Sleep Test (hst) With Type III Portable Monitor, Unattended; Minimum of 4 Channels: 2 Respiratory Movement/Airflow, 1 Ecg/Heart Rate and 1 Oxygen SaturationG0399 | 36 | $55 |
| Sleep Study in Sleep Lab (6 Years Or Older)95810 | 35 | $107 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 30 | $120 |
| Sleep Study in Sleep Lab With Continuous Airway Pressure (6 Years Or Older) |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Zolpidem Tartrate | 209 | 33 |
| Clonazepam | 129 | 15 |
| Pramipexole Di-Hclbrand: Pramipexole Dihydrochloride | 111 | 21 |
| Doxepin Hcl | 103 | 16 |
| Methylphenidate Hcl | 102 | 16 |
| Eszopiclone | 95 | 14 |
| Triazolam | 92 | 14 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-22
- Last updated
- 2025-06-12
- Certified
- 2025-06-12
Frequently asked questions
- What is James Gapinski's NPI number?
- James Gapinski's National Provider Identifier (NPI) is 1922114768, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Gapinski's specialty?
- James Gapinski is listed in the NPPES registry with a primary specialty of Sleep Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is James Gapinski located?
- James Gapinski's practice location on file with NPPES is 2845 Greenbrier Rd, Green Bay, WI 54308-8900.
- What is James Gapinski's phone number?
- The practice phone number listed in the NPPES registry for James Gapinski is (920) 288-8100.
- Does James Gapinski accept Medicare?
- James Gapinski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Gapinski's NPI active?
- Yes — James Gapinski's NPI (1922114768) is active in the NPPES registry as of the last update on 2025-06-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.