Gregory Hartig, MD
NPI 1386608966 · Otolaryngology Physician · Madison, WI
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Hartig, MD is a Otolaryngology Physician provider in Madison, WI (NPI 1386608966).
Provider details
- NPI number
- 1386608966
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 35488-20 (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
640 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 Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 202 | $33 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 113 | $61 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 71 | $75 |
| Diagnostic Exam of Voice Box Using a Flexible Endoscope31575 | 70 | $60 |
| New Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 15 Minutes Or More99202 | 64 | $44 |
| Biopsy of Mouth40808 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Chlorhexidine Gluconate | 65 | 19 |
| Famotidine | 41 | 15 |
| Clindamycin Hcl | 35 | 13 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 31 | 20 |
| Lidocaine Hclbrand: Lidocaine Hcl Viscous | 27 | — |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 14 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-12
- Last updated
- 2021-01-06
- Certified
- 2021-01-06
Frequently asked questions
- What is Gregory Hartig's NPI number?
- Gregory Hartig's National Provider Identifier (NPI) is 1386608966, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Hartig's specialty?
- Gregory Hartig is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Hartig located?
- Gregory Hartig's practice location on file with NPPES is 600 Highland Avenue, Madison, WI 53792.
- What is Gregory Hartig's phone number?
- The practice phone number listed in the NPPES registry for Gregory Hartig is (608) 263-6190.
- Does Gregory Hartig accept Medicare?
- Gregory Hartig is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Hartig's NPI active?
- Yes — Gregory Hartig's NPI (1386608966) is active in the NPPES registry as of the last update on 2021-01-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.