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Edit this profileAt a glance
- 400 E 3Rd St, Duluth, MN 55805
About Dr. Gruhl
Robert R. Gruhl, MD is a healthcare provider in Duluth, MN specializing in otolaryngology (ent). Robert trained at University of Minnesota Medical School, graduating in 2018. Robert is also listed as specializing in student in an organized health care education program. Medicare claims data shows Robert provided 270 services to 233 patients. 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 voice box using a flexible endoscope. This provider record is associated with NPI 1962909549.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (218) 786-3233
- Email not available
Practice Locations
400 E 3RD ST
Duluth, MN 55805
Conditions Commonly Evaluated or Treated
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.
Conditions
Most searched conditions
Balance
Ear and hearing
- Cholesteatoma
- Eustachian tube dysfunction
- Hearing loss
- Otosclerosis
- Perforated eardrum
- Swimmer's ear
Head, neck, and salivary
Nose and sinus
- Broken nose
- Deviated septum
- Loss or reduction of smell
- Nasal obstruction
- Nasal polyps
- Nosebleeds
- Seasonal allergies
Sleep and airway
Throat and voice
- Enlarged adenoids
- Globus sensation
- Hoarseness and voice change
- Laryngopharyngeal reflux
- Swallowing difficulties
- Vocal cord nodules
- Vocal cord paralysis
Cancer
Head & Neck
Throat & Voice
Procedures & services
Most searched procedures
Office diagnosis
Cosmetic
Ear & Hearing
Ear procedures
Head & Neck
Head and neck surgery
- Neck lymph-node dissection
- Parathyroid surgery
- Parotid gland surgery
- Thyroid removal surgery
- Voice-box removal
Nose & Sinus
Nose and sinus procedures
Sleep and airway
Throat & Voice
Throat, voice, and swallowing
Procedures Most Often Billed to Medicare
270 services · 233 patients · 8 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Diagnostic exam of voice box using a flexible endoscope | Procedure | 31575 |
48 | As often as other peers in Otolaryngology (ENT) |
| Diagnostic exam of nasal passages using an endoscope | Procedure | 31231 |
18 | Less often than most peers in Otolaryngology (ENT) |
| Removal of impacted ear wax | Procedure | 69210 |
16 | 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 |
74 | 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 |
52 | As often as other 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 |
31 | 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 |
17 | Less often than most peers in Otolaryngology (ENT) |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
14 | As often as other peers in Otolaryngology (ENT) |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other otolaryngology specialists in Duluth 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at University of Minnesota Medical School 8
Other providers in the same specialty who trained at the same institution.
Class of 2018 at University of Minnesota Medical School 8
Providers who graduated from the same medical school in the same year.
Also performs Diagnostic exam of voice box using a flexible endoscope 8
Providers in MN who bill this service to Medicare most often.
Common questions
What is Dr. Gruhl's specialty?
Dr. Gruhl is an otolaryngology (ent) in Duluth, MN. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Dr. Gruhl?
Dr. Gruhl is listed at 400 E 3Rd St, Duluth, MN 55805. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Gruhl?
The number on file is (218) 786-3233. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Gruhl?
Dr. Gruhl's National Provider Identifier is 1962909549. 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
What is Dr. Gruhl's medical education?
Dr. Gruhl attended University of Minnesota Medical School, graduating in 2018. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Gruhl have?
Dr. Gruhl has 8 years experience. Calculated from a graduation year of 2018, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Gruhl known for?
According to Medicare billing data, Dr. Gruhl performs procedures including diagnostic exam of voice box using a flexible endoscope, diagnostic exam of nasal passages using an endoscope and removal of impacted ear wax, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Gruhl's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Gruhl. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.