Physician Profile
Robert E. Sonnenburg Jr, M.D. practices otolaryngology (ent) in Green Bay, WI. Robert is a 2000 graduate of Medical College of Wisconsin. According to Medicare claims data, Robert cared for 174 Medicare patients across 202 services. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and diagnostic exam of nasal passages using an endoscope.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
2845 GREENBRIER RD
Green Bay, WI 54311
Within Otolaryngology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Balance
Ear and hearing
Head, neck, and salivary
Nose and sinus
Sleep and airway
Throat and voice
Cancer
Head & Neck
Throat & Voice
Most searched procedures
Office diagnosis
Cosmetic
Ear & Hearing
Ear procedures
Head & Neck
Head and neck surgery
Nose & Sinus
Nose and sinus procedures
Sleep and airway
Throat & Voice
Throat, voice, and swallowing
202 services · 174 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Diagnostic exam of nasal passages using an endoscope | Procedure | 31231 |
28 | Less often than most peers in Otolaryngology (ENT) |
| Diagnostic exam of voice box using a flexible endoscope | Procedure | 31575 |
26 | Less often than most peers in Otolaryngology (ENT) |
| Sleep study in sleep lab (6 years or older) | Treatment | 95810 |
12 | Less often than most peers in Otolaryngology (ENT) |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
51 | Less often than most peers in Otolaryngology (ENT) |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
42 | Less often than most peers in Otolaryngology (ENT) |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
25 | Less often than most peers in Otolaryngology (ENT) |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
18 | Less often than most peers in Otolaryngology (ENT) |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Robert E. Sonnenburg Jr is an otolaryngology (ent) in Green Bay, WI. That is the designation recorded for this NPI in the federal registry.
NPI registry
Robert E. Sonnenburg Jr is listed at 2845 Greenbrier Rd, Green Bay, WI 54311. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (920) 288-8230. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Robert E. Sonnenburg Jr's National Provider Identifier is 1972588176. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Robert E. Sonnenburg Jr attended Medical College of Wisconsin, graduating in 2000. This comes from the CMS National Downloadable File.
CMS public data
Robert E. Sonnenburg Jr has 26 years experience. Calculated from a graduation year of 2000, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Robert E. Sonnenburg Jr performs procedures including diagnostic exam of nasal passages using an endoscope and diagnostic exam of voice box using a flexible endoscope; provides treatments such as sleep study in sleep lab, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Robert E. Sonnenburg Jr. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.