Dr. John W. Grinsell, MD
- Medicare services, 2016
- 570
- Part D claims, 2017
- 152
- Publications
- 1
- Insurance carriers
- 1
- State license
- 1
- Practice address
- 2375 E Prater Way, Sparks, NV 89434
- Practice phone
- Call (775) 982-2400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Grinsell'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. John W. Grinsell is a cardiologist in Sparks, Nevada
Dr. Grinsell practices in Sparks, Nevada.
Dr. Grinsell's NPI, 1629092606, was assigned on July 26, 2006. Dr. Grinsell graduated from UNR Med in 1996. Dr. Grinsell's Nevada license number on file is 10449.
- NPI
- 1629092606NPI Registry (opens in a new tab)
- NPI enumeration date
- July 26, 2006
- NPI status
- Active
- Practice phone
- (775) 982-2400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. John W. Grinsell's practice address is in Sparks, Nevada
Dr. Grinsell's practice address in the NPI Registry is 2375 E Prater Way, Sparks, NV 89434, in Washoe County. The practice phone is (775) 982-2400.
- NPI Registry address2375 E Prater Way, Sparks, NV 89434 · Washoe CountyPhone(775) 982-2400
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. John W. Grinsell's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Grinsell practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Grinsell's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John W. Grinsell is one of 147 cardiologists in Nevada
Cardiovascular disease is Dr. Grinsell's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Grinsell has a license on file in Nevada.
Specialties and state licenses
- Cardiovascular disease, NevadaPrimary
Cardiologists near Dr. Grinsell
Counts of cardiologists 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. John W. Grinsell billed Medicare for 570 services in 2016
CMS data shows 570 Medicare services from Dr. Grinsell across 11 procedure codes in 2016. Medicare paid $40,398 for them.
Dr. Grinsell's Medicare services by type, 2016
- Office and hospital visits383
- Tests and treatments187
Where Dr. Grinsell's Medicare services took place, 2016
- In an office28450%
- In a facility28650%
Dr. Grinsell compared with the Nevada median for cardiologists, 2016
- Dr. Grinsell
- Nevada median
- Medicare services
- 570vs 2,74379% below
- Part D claims
- 152vs 2,17393% below
Medians across 143 cardiologists in Nevada with Dmand AI profiles that report each measure.
Dr. Grinsell's most billed Medicare procedure codes, 2016
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. Grinsell?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Grinsell and other cardiologists in Nevada.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John W. Grinsell's patients have a median age of 65
Across all payers, Dmand AI patient panel data puts Dr. Grinsell's median patient age at 65, with 0% women.
Dr. Grinsell's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
Dr. John W. Grinsell wrote 152 Medicare Part D claims in 2017
In 2017, Dr. Grinsell wrote 152 Medicare Part D claims. Every claim was for a generic drug. They cover 7 drugs, with $1,788 in total drug cost. In 2016, CMS named 1,280 claims across 28 drugs.
Dr. Grinsell's most prescribed drugs by claims, 2017
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2016 to 2017
- 2016
- 2017
- Claims for drugs CMS names
- 2016: 1,2802017: 15288%
Drugs named by CMS: 7 in 2017, 28 in 2016.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. John W. Grinsell has 1 publication on record
Dmand AI links 1 paper to Dr. Grinsell.
Recent publications by Dr. Grinsell
See who Dr. Grinsell researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Grinsell works with, so you can find a warm path to the right cardiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John W. Grinsell graduated from UNR Med
Dr. Grinsell graduated from UNR Med in 1996.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. John W. Grinsell accepts plans from 1 insurance carrier
Dr. Grinsell is in network with 1 carrier, including NV State Medicaid. Medicaid plans come from the most carriers, 1. Check the plan with the practice before a visit.
- NV State Medicaid
Source: Dmand AI Insurance Network Data
Sources for Dr. John W. Grinsell'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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 |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. John W. Grinsell
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. John W. Grinsell's NPI number?
Dr. John W. Grinsell's NPI number is 1629092606. It was assigned on July 26, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John W. Grinsell?
Dr. John W. Grinsell is a cardiologist in Sparks, Nevada. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. John W. Grinsell practice?
Dr. Grinsell practices at 2375 E Prater Way, Sparks, NV 89434.
What is Dr. John W. Grinsell's office phone number?
The practice phone on file for Dr. Grinsell is (775) 982-2400.
What is Dr. John W. Grinsell's medical license number?
Dr. Grinsell's Nevada license number on file is 10449.
Does Dr. John W. Grinsell accept Medicare?
Yes. CMS data shows Dr. Grinsell billed Medicare for 570 services in 2016.
What services does Dr. John W. Grinsell bill to Medicare?
In 2016, Dr. Grinsell's most billed Medicare services were office visit, established patient (99214), hospital inpatient care (99233) and heart test or procedure (93010).
Where did Dr. John W. Grinsell go to medical school?
Dr. Grinsell graduated from UNR Med in 1996.
What drugs does Dr. John W. Grinsell prescribe most?
In 2017 Medicare Part D data, Dr. Grinsell's most prescribed drugs by claims were Lisinopril, Atorvastatin Calcium and Metoprolol Tartrate.
How long has Dr. John W. Grinsell been practicing?
Dr. Grinsell graduated from medical school in 1996, 30 years ago.
Does Dr. John W. Grinsell do research?
Dmand AI links 1 publication to Dr. Grinsell.
What insurance does Dr. John W. Grinsell accept?
Dr. Grinsell is in network with 1 carrier, including NV State Medicaid. Medicaid plans come from the most carriers, 1. Check the plan with the practice before a visit.
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