Robert Gullberg, MD
NPI 1669402541 · Infectious Disease Physician · Racine, WI
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Gullberg, MD is a Infectious Disease Physician provider in Racine, WI (NPI 1669402541).
Provider details
- NPI number
- 1669402541
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 27459 (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
19 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
1,767 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 | 537 | $61 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 444 | $73 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 161 | $90 |
| Anticoagulant Management of Patient Taking Warfarin93793 | 155 | $11 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 139 | $122 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 200 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 661 | 136 |
| Atorvastatin Calcium | 605 | 156 |
| Potassium Chloride | 471 | 124 |
| Amlodipine Besylate | 442 | 107 |
| Losartan Potassium | 441 | 119 |
| Gabapentin | 326 | 73 |
| Furosemide | 320 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-04
- Last updated
- 2018-06-18
Frequently asked questions
- What is Robert Gullberg's NPI number?
- Robert Gullberg's National Provider Identifier (NPI) is 1669402541, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Gullberg's specialty?
- Robert Gullberg is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Gullberg located?
- Robert Gullberg's practice location on file with NPPES is 3811 Spring Street, Racine, WI 53405.
- What is Robert Gullberg's phone number?
- The practice phone number listed in the NPPES registry for Robert Gullberg is (262) 687-8310.
- Does Robert Gullberg accept Medicare?
- Robert Gullberg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Gullberg's NPI active?
- Yes — Robert Gullberg's NPI (1669402541) is active in the NPPES registry as of the last update on 2018-06-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.