Int J Pediatr Otorhinolaryngol
Audiometry, Pure-ToneFanconi AnemiaHearing Loss
Dr. Robert Richard Gruhl, MD
NPI1962909549PAC ID3173986858
- Medicare services, 2024
- 270
- Medicare patients, 2024
- 172
- Part D claims, 2024
- 378
- Publications
- 1
- Hospital affiliations
- 4
- Practice address
- 420 E. 1st St., Duluth, MN 55805
- Practice phone
- Call (218) 786-1019
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Essentia Health-Duluth Clinic 1st Street
Mammography / Breast Imaging Center · Duluth, Minnesota
Find Dr. Gruhl's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Robert Richard Gruhl is an otolaryngologist in Duluth, Minnesota
Dr. Gruhl practices at Essentia Health-Duluth Clinic 1st Street in Duluth, Minnesota.
Dr. Gruhl's NPI, 1962909549, was assigned on April 10, 2018. Dr. Gruhl graduated from University of Minnesota Medical School in 2018. Dr. Gruhl holds Minnesota license 74249.
NPI and contact details
- NPI
- 1962909549NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3173986858
- NPI enumeration date
- April 10, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (218) 786-1019
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert Richard Gruhl practices at Essentia Health-Duluth Clinic 1st Street in Duluth, Minnesota
Dr. Gruhl's primary practice is Essentia Health-Duluth Clinic 1st Street, at 420 E. 1st St., Duluth, MN 55805. The practice phone is (218) 786-1019.
- Essentia Health-Duluth Clinic 1st Street420 E. 1st St., Duluth, MN 55805Phone(218) 786-1019
Source: Dmand AI Affiliation Data
Dr. Robert Richard Gruhl is affiliated with 6 sites of care and 4 medical groups
Dr. Gruhl's primary practice is Essentia Health-Duluth Clinic 1st Street in Duluth, Minnesota. Dr. Gruhl is also affiliated with Essentia Health-Duluth (Miller-Dwan, Building D). The medical group on file is Essentia Health-Duluth Clinic. Dmand AI also links Dr. Gruhl to 3 more hospitals, 3 medical groups and 1 group practice or clinic, each named with a free account. Dr. Gruhl's employer is on file too: a breast imaging center.
Essentia Health-Duluth Clinic 1st StreetPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Robert Richard Gruhl's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gruhl practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Essentia Health-Duluth Clinic 1st Street | Available with a free account |
| +5 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert Richard Gruhl is one of 193 otolaryngologists in Minnesota
Otolaryngology is Dr. Gruhl's primary specialty in the NPI Registry, under taxonomy code 207Y00000X. Dmand AI has Dr. Gruhl's licenses on file in 2 states: Minnesota and Wisconsin.
Specialties and state licenses
- Otolaryngology, MinnesotaPrimary
- Wisconsin license
Otolaryngologists near Dr. Gruhl
Counts of otolaryngologists with a Dmand AI profile, by place and practice. Each opens the list.
193otolaryngologists in Minnesota
6otolaryngologists in Duluth
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Robert Richard Gruhl billed Medicare for 270 services in 2024
CMS data shows 270 Medicare services from Dr. Gruhl across 8 procedure codes in 2024, for 172 Medicare patients. Medicare paid $14,182 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024270
Medicare patients172
Paid by Medicare$14,182
Procedure codes8
Dr. Gruhl's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 742024: 188154%
- Surgery
- 2023: 382024: 82116%
Dr. Gruhl compared with the Minnesota median for otolaryngologists, 2024
- Dr. Gruhl
- Minnesota median
- Medicare services
- 270vs 22619% above
- Medicare patients
- 172vs 15610% above
- Part D claims
- 305vs 1302.3 times
Medians across 184 otolaryngologists in Minnesota with Dmand AI profiles that report each measure.
Dr. Gruhl's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Gruhl?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gruhl and other otolaryngologists in Minnesota.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert Richard Gruhl treated 172 Medicare patients in 2024, average age 70
CMS counts 172 Medicare patients who saw Dr. Gruhl in 2024. The largest group is 65 to 74, with 65 patients. 65% of them have high blood pressure, and 59% have high cholesterol. 24% are also on Medicaid. Their average risk score is 1.54, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Gruhl's median patient age at 62, with 45% women.
Medicare patients, 2024172
Average age70
Average risk score1.54
Also on Medicaid24%
Dr. Gruhl's Medicare patients by age, 2024
Dr. Gruhl's Medicare patients by sex, 2024
- Women7845%
- Men9455%
Chronic conditions among Dr. Gruhl's Medicare patients, 2024
- High blood pressure65%
- High cholesterol59%
- Arthritis47%
- Mood disorders32%
- Depression30%
- Diabetes30%
- Anxiety29%
- Chronic kidney disease23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Gruhl's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women45%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert Richard Gruhl wrote 378 Medicare Part D claims in 2024
In 2024, Dr. Gruhl wrote 378 Medicare Part D claims for 181 patients. 97% of them were for generic drugs. CMS names the drug for 305 of them, across 11 drugs with 11 or more claims each, at $6,019 in total drug cost. In 2023, CMS named 26 claims across 2 drugs.
Part D claims, 2024378
Drugs named by CMS11
Total drug cost$6,019
Part D patients181
Dr. Gruhl's Part D claims by kind of drug, 2024
- Generic367 claims97%
- Brand-name11 claims3%
Dr. Gruhl's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Gruhl's Part D claims, 2024
- Opioids14%52 of 378 claims
- Antibiotics26%100 of 378 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 262024: 3051073%
Drugs named by CMS: 11 in 2024, 2 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Robert Richard Gruhl takes part in Medicare
Dr. Gruhl accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Robert Richard Gruhl has 1 publication on record
Dmand AI links 1 paper to Dr. Gruhl in 2022. Dr. Gruhl's most frequent co-authors are Jeffrey Alan Dorrity, MD, Peter Karempelis, MD and Brianne Barnett Roby, MD.
Papers1
Dr. Gruhl's most frequent co-authors
- Jeffrey Alan Dorrity, MD1 shared paper
- Peter Karempelis, MD1 shared paper
- Brianne Barnett Roby, MD1 shared paper
Recent publications by Dr. Gruhl
See who Dr. Gruhl researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Gruhl works with, so you can find a warm path to the right otolaryngologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Robert Richard Gruhl received $1,572 in industry payments from 2022 to 2025
CMS Open Payments shows 19 general payments to Dr. Gruhl from 2 drug and device companies from 2022 to 2025. Travel and lodging make up the largest share, 60% of the total. Inspire Medical Systems, Inc. paid the most, $1,320.
General payments to Dr. Gruhl by program year, 2022 to 2025
General payments to Dr. Gruhl by kind, 2022 to 2025
$1.6Kin total
- Travel and lodging$94860%
- Food and beverage$62540%
Companies that paid Dr. Gruhl the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Robert Richard Gruhl graduated from University of Minnesota Medical School
Dr. Gruhl graduated from University of Minnesota Medical School in 2018.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Robert Richard Gruhl's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Robert Richard Gruhl
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Robert Richard Gruhl's NPI number?
Dr. Robert Richard Gruhl's NPI number is 1962909549. It was assigned on April 10, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert Richard Gruhl?
Dr. Robert Richard Gruhl is an otolaryngologist in Duluth, Minnesota. The primary specialty in the NPI Registry is Otolaryngology Physician (taxonomy code 207Y00000X).
Where does Dr. Robert Richard Gruhl practice?
Dr. Gruhl practices at 420 E. 1st St., Duluth, MN 55805. Dr. Gruhl's primary practice is Essentia Health-Duluth Clinic 1st Street in Duluth, Minnesota. Dmand AI also links Dr. Gruhl to 3 hospitals, 3 medical groups and 1 group practice or clinic.
What is Dr. Robert Richard Gruhl's office phone number?
The practice phone on file for Dr. Gruhl is (218) 786-1019.
What is Dr. Robert Richard Gruhl's medical license number?
Dr. Gruhl holds Minnesota license 74249, one of the licenses on file in 2 states.
Which states has Dr. Robert Richard Gruhl been licensed in?
Dmand AI has state licenses on file for Dr. Gruhl in Minnesota and Wisconsin.
Which hospitals is Dr. Robert Richard Gruhl affiliated with?
Dr. Gruhl is affiliated with Essentia Health-Duluth (Miller-Dwan, Building D). Dmand AI links Dr. Gruhl to 3 more hospitals.
What medical group is Dr. Robert Richard Gruhl part of?
Dr. Gruhl is linked to Essentia Health-Duluth Clinic. Dmand AI links Dr. Gruhl to 3 more medical groups.
Does Dr. Robert Richard Gruhl accept Medicare?
Yes. CMS data shows Dr. Gruhl billed Medicare for 270 services in 2024, and Dr. Gruhl accepts Medicare assignment.
How many Medicare patients does Dr. Robert Richard Gruhl see?
CMS counts 172 Medicare patients who saw Dr. Gruhl in 2024, with an average age of 70.
Show 7 more questionsShow fewer questions
What services does Dr. Robert Richard Gruhl bill to Medicare?
In 2024, Dr. Gruhl's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and surgery: lungs and airway (31575).
Where did Dr. Robert Richard Gruhl go to medical school?
Dr. Gruhl graduated from University of Minnesota Medical School in 2018.
What drugs does Dr. Robert Richard Gruhl prescribe most?
In 2024 Medicare Part D data, Dr. Gruhl's most prescribed drugs by claims were Oxycodone HCl, Ipratropium Bromide and Cephalexin.
Has Dr. Robert Richard Gruhl received payments from drug or device companies?
CMS Open Payments shows $1,572 in general payments to Dr. Gruhl from 2 companies from 2022 to 2025. The largest total came from Inspire Medical Systems, Inc.
How long has Dr. Robert Richard Gruhl been practicing?
Dr. Gruhl graduated from medical school in 2018, 8 years ago.
Does Dr. Robert Richard Gruhl do research?
Dmand AI links 1 publication to Dr. Gruhl.
Who does Dr. Robert Richard Gruhl publish with?
Dr. Gruhl's most frequent co-authors are Jeffrey Alan Dorrity, MD (1 shared paper), Peter Karempelis, MD (1 shared paper) and Brianne Barnett Roby, MD (1 shared paper).
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