Dr. Mitchell Robert Grunsky, MD
- Medicare services, 2024
- 11,370
- Medicare patients, 2024
- 544
- Part D claims, 2024
- 11,408
- Hospital affiliations
- 3
- Industry payments
- $10,976
- Practice address
- 325 Broad St, Sumter, SC 29150
- Practice phone
- Call (803) 773-5227
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Colonial Family Practice
Sumter, South Carolina
Find Dr. Grunsky's professional email, personal email and mobile number
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Dr. Mitchell Robert Grunsky is a family medicine physician in Sumter, South Carolina
Dr. Grunsky practices at Colonial Family Practice in Sumter, South Carolina.
Dr. Grunsky's NPI, 1124105010, was assigned on November 1, 2006. Dr. Grunsky graduated from University of South Carolina School of Medicine in 2001. Dr. Grunsky holds South Carolina license 25247.
- NPI
- 1124105010NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5092785360
- NPI enumeration date
- November 1, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (803) 773-5227
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mitchell Robert Grunsky practices at Colonial Family Practice in Sumter, South Carolina
Dr. Grunsky's primary practice is Colonial Family Practice, at 325 Broad St, Sumter, SC 29150 in Sumter County. The practice phone is (803) 773-5227.
- Colonial Family Practice325 Broad St, Sumter, SC 29150 · Sumter CountyPhone(803) 773-5227
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mitchell Robert Grunsky is affiliated with 7 sites of care and 2 medical groups
Dr. Grunsky's primary practice is Colonial Family Practice in Sumter, South Carolina. Dr. Grunsky is also affiliated with Prisma Health Tuomey Hospital. The medical group on file is McLeod Health Clarendon. Dmand AI also links Dr. Grunsky to 2 more hospitals, 1 group practice or clinic, 1 home health agency, 1 rural health clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mitchell Robert Grunsky's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Grunsky practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Colonial Family Practice | Available with a free account |
| +6 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mitchell Robert Grunsky is one of 2,356 family medicine physicians in South Carolina
Family medicine is Dr. Grunsky's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Grunsky is licensed in South Carolina.
Specialties and state licenses
- Family medicine, South CarolinaPrimary
Family medicine physicians near Dr. Grunsky
Counts of family medicine physicians 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. Mitchell Robert Grunsky billed Medicare for 11,370 services in 2024
CMS data shows 11,370 Medicare services from Dr. Grunsky across 63 procedure codes in 2024, for 544 Medicare patients. Medicare paid $279,583 for them. Every service was in an office.
Dr. Grunsky's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 4,9732024: 4,8253%
- Other services
- 2023: 2,5502024: 2,7106%
- Office and hospital visits
- 2023: 1,7662024: 1,49815%
- Drugs given in the office
- 2023: 1,0192024: 9725%
- Surgery
- 2023: 7412024: 7592%
- Tests and treatments
- 2023: 5142024: 46110%
- Imaging
- 2023: 992024: 14546%
Dr. Grunsky compared with the South Carolina median for family medicine physicians, 2024
- Dr. Grunsky
- South Carolina median
- Medicare services
- 11,370vs 74415.3 times
- Medicare patients
- 544vs 2322.3 times
- Part D claims
- 10,654vs 1,02310.4 times
Medians across 2,295 family medicine physicians in South Carolina with Dmand AI profiles that report each measure.
Dr. Grunsky'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Grunsky and other family medicine physicians in South Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mitchell Robert Grunsky treated 544 Medicare patients in 2024, average age 73
CMS counts 544 Medicare patients who saw Dr. Grunsky in 2024. The largest group is 65 to 74, with 307 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 3% are also on Medicaid. Their average risk score is 1.03, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Grunsky's median patient age at 65, with 55% women.
Dr. Grunsky's Medicare patients by age, 2024
Dr. Grunsky's Medicare patients by sex, 2024
- Women29354%
- Men25146%
Chronic conditions among Dr. Grunsky's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis46%
- Diabetes41%
- Ischemic heart disease24%
- Mood disorders21%
- Anxiety20%
- Chronic kidney disease20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Grunsky'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
- Women55%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mitchell Robert Grunsky wrote 11,408 Medicare Part D claims in 2024
In 2024, Dr. Grunsky wrote 11,408 Medicare Part D claims for 566 patients. 83% of them were for generic drugs. CMS names the drug for 10,654 of them, across 150 drugs with 11 or more claims each, at $1,423,693 in total drug cost. In 2023, CMS named 11,166 claims across 156 drugs.
Dr. Grunsky's Part D claims by kind of drug, 2024
- Generic9,464 claims83%
- Brand-name1,834 claims16%
- Other110 claims1%
Dr. Grunsky'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. Grunsky's Part D claims, 2024
- Opioids1%116 of 11,408 claims
- Antibiotics1%144 of 11,408 claims
- Antipsychotics, patients 65 and over0%49 of 11,408 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: 11,1662024: 10,6545%
Drugs named by CMS: 150 in 2024, 156 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. Mitchell Robert Grunsky takes part in Medicare
Dr. Grunsky accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Skin biopsy: 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. Mitchell Robert Grunsky received $10,976 in industry payments from 2016 to 2025
CMS Open Payments shows 796 general payments to Dr. Grunsky from 56 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. AstraZeneca Pharmaceuticals LP paid the most, $1,027.
General payments to Dr. Grunsky by program year, 2016 to 2025
General payments to Dr. Grunsky by kind, 2016 to 2025
- Food and beverage$10,73798%
- Education$2392%
Companies that paid Dr. Grunsky the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mitchell Robert Grunsky graduated from University of South Carolina School of Medicine
Dr. Grunsky graduated from University of South Carolina School of Medicine in 2001.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mitchell Robert Grunsky'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 |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| 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. Mitchell Robert Grunsky
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What is Dr. Mitchell Robert Grunsky's NPI number?
Dr. Mitchell Robert Grunsky's NPI number is 1124105010. It was assigned on November 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mitchell Robert Grunsky?
Dr. Mitchell Robert Grunsky is a family medicine physician in Sumter, South Carolina. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Mitchell Robert Grunsky practice?
Dr. Grunsky practices at 325 Broad St, Sumter, SC 29150. Dr. Grunsky's primary practice is Colonial Family Practice in Sumter, South Carolina. Dmand AI also links Dr. Grunsky to 2 hospitals, 1 group practice or clinic, 1 home health agency, 1 rural health clinic and 1 medical group.
What is Dr. Mitchell Robert Grunsky's office phone number?
The practice phone on file for Dr. Grunsky is (803) 773-5227.
What is Dr. Mitchell Robert Grunsky's medical license number?
Dr. Grunsky holds South Carolina license 25247.
Which hospitals is Dr. Mitchell Robert Grunsky affiliated with?
Dr. Grunsky is affiliated with Prisma Health Tuomey Hospital. Dmand AI links Dr. Grunsky to 2 more hospitals.
What medical group is Dr. Mitchell Robert Grunsky part of?
Dr. Grunsky is linked to McLeod Health Clarendon. Dmand AI links Dr. Grunsky to 1 more medical group.
Does Dr. Mitchell Robert Grunsky accept Medicare?
Yes. CMS data shows Dr. Grunsky billed Medicare for 11,370 services in 2024, and Dr. Grunsky accepts Medicare assignment.
How many Medicare patients does Dr. Mitchell Robert Grunsky see?
CMS counts 544 Medicare patients who saw Dr. Grunsky in 2024, with an average age of 73.
What services does Dr. Mitchell Robert Grunsky bill to Medicare?
In 2024, Dr. Grunsky's most billed Medicare services were medicare temporary code (Q9967), office visit, established patient (99214) and surgery: heart and blood vessels (36415).
Show 4 more questionsShow fewer questions
Where did Dr. Mitchell Robert Grunsky go to medical school?
Dr. Grunsky graduated from University of South Carolina School of Medicine in 2001.
What drugs does Dr. Mitchell Robert Grunsky prescribe most?
In 2024 Medicare Part D data, Dr. Grunsky's most prescribed drugs by claims were Amlodipine Besylate, Losartan Potassium and Atorvastatin Calcium.
Has Dr. Mitchell Robert Grunsky received payments from drug or device companies?
CMS Open Payments shows $10,976 in general payments to Dr. Grunsky from 56 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Mitchell Robert Grunsky been practicing?
Dr. Grunsky graduated from medical school in 2001, 25 years ago.
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