Dr. Stefan J. Grenvik, MD
- Medicare services, 2024
- 120
- Medicare patients, 2024
- 223
- Hospital affiliations
- 2
- Industry payments
- $29
- Medical groups
- 2
- Practice address
- 1214 Coolidge Avenue, Lafayette, LA 70503
- Practice phone
- Call (337) 289-7991
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Grenvik's professional email, personal email and mobile number
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Dr. Stefan J. Grenvik is an anesthesiologist in Lafayette, Louisiana
Dr. Grenvik practices at Ochsner Lafayette General Medical Center in Lafayette, Louisiana, part of Ochsner Health System.
Dr. Grenvik's NPI, 1770513913, was assigned on July 4, 2006. Dr. Grenvik graduated from University of Pittsburgh School of Medicine in 1989. Dr. Grenvik holds Tennessee license MD024364.
- NPI
- 1770513913NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9638197544
- NPI enumeration date
- July 4, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (337) 289-7991
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stefan J. Grenvik practices at Ochsner Lafayette General Medical Center in Lafayette, Louisiana
Dr. Grenvik's primary practice is Ochsner Lafayette General Medical Center, at 1214 Coolidge Avenue, Lafayette, LA 70503 in Lafayette Parish. The practice phone is (337) 289-7991.
- Ochsner Lafayette General Medical Center1214 Coolidge Avenue, Lafayette, LA 70503 · Lafayette ParishPhone(337) 289-7991
Source: Dmand AI Affiliation Data
Dr. Stefan J. Grenvik is affiliated with 2 sites of care and 2 medical groups
Dr. Grenvik's primary practice is Ochsner Lafayette General Medical Center in Lafayette, Louisiana, part of Ochsner Health System. Dr. Grenvik is also affiliated with Bristol Regional Medical Center. The medical group on file is Family Health Plaza. Dmand AI also links Dr. Grenvik to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Stefan J. Grenvik's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Grenvik practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ochsner Lafayette General Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stefan J. Grenvik is one of 496 anesthesiologists in Louisiana
Anesthesiology is Dr. Grenvik's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Grenvik is licensed in Tennessee.
Specialties and state licenses
- Anesthesiology, TennesseePrimary
Anesthesiologists near Dr. Grenvik
Counts of anesthesiologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Stefan J. Grenvik billed Medicare for 120 services in 2024
CMS data shows 120 Medicare services from Dr. Grenvik across 7 procedure codes in 2024, for 223 Medicare patients. Medicare paid $9,067 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Grenvik's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 982024: 899%
- Surgery
- 2023: 452024: 3131%
Dr. Grenvik compared with the Louisiana median for anesthesiologists, 2024
- Dr. Grenvik
- Louisiana median
- Medicare services
- 120vs 522.3 times
- Medicare patients
- 223vs 872.6 times
Medians across 483 anesthesiologists in Louisiana with Dmand AI profiles that report each measure.
Dr. Grenvik'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. Grenvik?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Grenvik and other anesthesiologists in Louisiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stefan J. Grenvik treated 223 Medicare patients in 2024, average age 74
CMS counts 223 Medicare patients who saw Dr. Grenvik in 2024. The largest group is 65 to 74, with 98 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 13% are also on Medicaid. Their average risk score is 2.05, 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. Grenvik's median patient age at 69, with 54% women.
Dr. Grenvik's Medicare patients by age, 2024
Dr. Grenvik's Medicare patients by sex, 2024
- Women11652%
- Men10748%
Chronic conditions among Dr. Grenvik's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis63%
- Anxiety45%
- Chronic kidney disease44%
- Diabetes44%
- Mood disorders43%
- Ischemic heart disease41%
Share of Medicare patients with each condition. A patient can have several.
Dr. Grenvik's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Stefan J. Grenvik takes part in Medicare
Dr. Grenvik accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Stefan J. Grenvik received $29 in industry payments from 2017 to 2023
CMS Open Payments shows 2 general payments to Dr. Grenvik from 2 drug and device companies from 2017 to 2023. Food and beverage make up the largest share, 100% of the total. Eagle Pharmaceuticals, Inc. paid the most, $18.
General payments to Dr. Grenvik by program year, 2017 to 2023
Companies that paid Dr. Grenvik the most, 2017 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stefan J. Grenvik graduated from University of Pittsburgh School of Medicine
Dr. Grenvik graduated from University of Pittsburgh School of Medicine in 1989.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Stefan J. Grenvik'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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. Stefan J. Grenvik
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. Stefan J. Grenvik's NPI number?
Dr. Stefan J. Grenvik's NPI number is 1770513913. It was assigned on July 4, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Stefan J. Grenvik?
Dr. Stefan J. Grenvik is an anesthesiologist in Lafayette, Louisiana. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Stefan J. Grenvik practice?
Dr. Grenvik practices at 1214 Coolidge Avenue, Lafayette, LA 70503. Dr. Grenvik's primary practice is Ochsner Lafayette General Medical Center in Lafayette, Louisiana, part of Ochsner Health System. Dmand AI also links Dr. Grenvik to 1 medical group.
What is Dr. Stefan J. Grenvik's office phone number?
The practice phone on file for Dr. Grenvik is (337) 289-7991.
What is Dr. Stefan J. Grenvik's medical license number?
Dr. Grenvik holds Tennessee license MD024364.
Which hospitals is Dr. Stefan J. Grenvik affiliated with?
Dr. Grenvik practices at Ochsner Lafayette General Medical Center in Lafayette, Louisiana. Dr. Grenvik is also affiliated with Bristol Regional Medical Center.
What medical group is Dr. Stefan J. Grenvik part of?
Dr. Grenvik is linked to Family Health Plaza. Dmand AI links Dr. Grenvik to 1 more medical group.
Does Dr. Stefan J. Grenvik accept Medicare?
Yes. CMS data shows Dr. Grenvik billed Medicare for 120 services in 2024, and Dr. Grenvik accepts Medicare assignment.
How many Medicare patients does Dr. Stefan J. Grenvik see?
CMS counts 223 Medicare patients who saw Dr. Grenvik in 2024, with an average age of 74.
What services does Dr. Stefan J. Grenvik bill to Medicare?
In 2024, Dr. Grenvik's most billed Medicare services were anesthesia (00731), anesthesia (00790) and surgery: brain, spine and nerves (64450).
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Where did Dr. Stefan J. Grenvik go to medical school?
Dr. Grenvik graduated from University of Pittsburgh School of Medicine in 1989.
Has Dr. Stefan J. Grenvik received payments from drug or device companies?
CMS Open Payments shows $29 in general payments to Dr. Grenvik from 2 companies from 2017 to 2023. The largest total came from Eagle Pharmaceuticals, Inc.
How long has Dr. Stefan J. Grenvik been practicing?
Dr. Grenvik graduated from medical school in 1989, 37 years ago.
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