Dr. William Clark Griggs, MD
- Medicare services, 2024
- 381
- Medicare patients, 2024
- 336
- Part D claims, 2024
- 492
- Hospital affiliations
- 2
- Industry payments
- $17
- Practice address
- 1731 Frank Gaston Blvd, Rock Hill, SC 29732
- Practice phone
- Call (803) 329-1234
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Griggs' 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. William Clark Griggs is a general practice physician in Rock Hill, South Carolina
Dr. Griggs practices at Rock Hill Hospital - Piedmont Medical Network in Rock Hill, South Carolina, part of Tenet Healthcare.
Dr. Griggs' NPI, 1457376055, was assigned on July 13, 2006. Dr. Griggs graduated from Medical University of South Carolina College of Medicine in 1984. Dr. Griggs holds South Carolina license 12552.
- NPI
- 1457376055NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3072597517
- NPI enumeration date
- July 13, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (803) 329-1234
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 68
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William Clark Griggs practices at 2 locations in Rock Hill, South Carolina
Dr. Griggs' primary practice is Rock Hill Hospital - Piedmont Medical Network, at 1731 Frank Gaston Blvd, Rock Hill, SC 29732 in York County. The practice phone is (803) 329-1234. Dr. Griggs also practices at Piedmont Medical Center, 222 Herlong S Ave, Rock Hill, SC 29732.
- Rock Hill Hospital - Piedmont Medical NetworkPrimary1731 Frank Gaston Blvd, Rock Hill, SC 29732 · York CountyPhone(803) 329-1234
- Piedmont Medical Center222 Herlong S Ave, Rock Hill, SC 29732 · York CountyPhone(803) 329-1234
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. William Clark Griggs is affiliated with 3 sites of care and 2 medical groups
Dr. Griggs' primary practice is Rock Hill Hospital - Piedmont Medical Network in Rock Hill, South Carolina, part of Tenet Healthcare. Dr. Griggs is also affiliated with MUSC Health Florence Medical Center. The medical group on file is MUSC Community Physicians. Dmand AI also links Dr. Griggs to 1 more physician office and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William Clark Griggs' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Griggs practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Rock Hill Hospital - Piedmont Medical Network | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William Clark Griggs is one of 78 general practice physicians in South Carolina
General practice is Dr. Griggs' primary specialty in the NPI Registry, under taxonomy code 208D00000X. Dr. Griggs is licensed in South Carolina.
Specialties and state licenses
- General practice, South CarolinaPrimary
General practice physicians near Dr. Griggs
Counts of general practice 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. William Clark Griggs billed Medicare for 381 services in 2024
CMS data shows 381 Medicare services from Dr. Griggs across 3 procedure codes in 2024, for 336 Medicare patients. Medicare paid $37,125 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Griggs' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2772024: 38138%
Dr. Griggs compared with the South Carolina median for general practice physicians, 2024
- Dr. Griggs
- South Carolina median
- Medicare services
- 381vs 30425% above
- Medicare patients
- 336vs 18285% above
- Part D claims
- 368vs 25246% above
Medians across 72 general practice physicians in South Carolina with Dmand AI profiles that report each measure.
Dr. Griggs' 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. Griggs and other general practice physicians in South Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William Clark Griggs treated 336 Medicare patients in 2024, average age 74
CMS counts 336 Medicare patients who saw Dr. Griggs in 2024. The largest group is 75 to 84, with 122 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 35% are also on Medicaid. Their average risk score is 1.92, 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. Griggs' median patient age at 54, with 57% women.
Dr. Griggs' Medicare patients by age, 2024
Dr. Griggs' Medicare patients by sex, 2024
- Women19057%
- Men14643%
Chronic conditions among Dr. Griggs' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis51%
- Diabetes47%
- Anxiety41%
- Chronic kidney disease38%
- Mood disorders35%
- Heart failure32%
Share of Medicare patients with each condition. A patient can have several.
Dr. Griggs' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 54
Patient panel by sex, all payers
- Women57%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. William Clark Griggs wrote 492 Medicare Part D claims in 2024
In 2024, Dr. Griggs wrote 492 Medicare Part D claims for 317 patients. 96% of them were for generic drugs. CMS names the drug for 368 of them, across 14 drugs with 11 or more claims each, at $2,069 in total drug cost. In 2023, CMS named 275 claims across 10 drugs.
Dr. Griggs' Part D claims by kind of drug, 2024
- Generic474 claims96%
- Brand-name18 claims4%
Dr. Griggs' 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. Griggs' Part D claims, 2024
- Opioids25%122 of 492 claims
- Antibiotics25%124 of 492 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: 2752024: 36834%
Drugs named by CMS: 14 in 2024, 10 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. William Clark Griggs takes part in Medicare
Dr. Griggs 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. William Clark Griggs received $17 in industry payments in 2017
CMS Open Payments shows 1 general payment to Dr. Griggs from 1 drug or device company in 2017. Food and beverage make up the largest share, 100% of the total. Bioventus LLC paid the most, $17.
Companies that paid Dr. Griggs the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William Clark Griggs graduated from Medical University of South Carolina College of Medicine
Dr. Griggs graduated from Medical University of South Carolina College of Medicine in 1984.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William Clark Griggs'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 Affiliation DataDmand AI Practice 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) |
| 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. William Clark Griggs
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. William Clark Griggs' NPI number?
Dr. William Clark Griggs' NPI number is 1457376055. It was assigned on July 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. William Clark Griggs?
Dr. William Clark Griggs is a general practice physician in Rock Hill, South Carolina. The primary specialty in the NPI Registry is General Practice Physician (taxonomy code 208D00000X).
Where does Dr. William Clark Griggs practice?
Dr. Griggs practices at 1731 Frank Gaston Blvd, Rock Hill, SC 29732. Dr. Griggs also practices at 222 Herlong S Ave, Rock Hill, SC 29732. Dr. Griggs' primary practice is Rock Hill Hospital - Piedmont Medical Network in Rock Hill, South Carolina, part of Tenet Healthcare. Dmand AI also links Dr. Griggs to 1 physician office and 1 medical group.
What is Dr. William Clark Griggs' office phone number?
The practice phone on file for Dr. Griggs is (803) 329-1234.
What is Dr. William Clark Griggs' medical license number?
Dr. Griggs holds South Carolina license 12552.
Which hospitals is Dr. William Clark Griggs affiliated with?
Dr. Griggs practices at Rock Hill Hospital - Piedmont Medical Network in Rock Hill, South Carolina. Dr. Griggs is also affiliated with MUSC Health Florence Medical Center.
What medical group is Dr. William Clark Griggs part of?
Dr. Griggs is linked to MUSC Community Physicians. Dmand AI links Dr. Griggs to 1 more medical group.
Does Dr. William Clark Griggs accept Medicare?
Yes. CMS data shows Dr. Griggs billed Medicare for 381 services in 2024, and Dr. Griggs accepts Medicare assignment.
How many Medicare patients does Dr. William Clark Griggs see?
CMS counts 336 Medicare patients who saw Dr. Griggs in 2024, with an average age of 74.
What services does Dr. William Clark Griggs bill to Medicare?
In 2024, Dr. Griggs' most billed Medicare services were emergency department visit (99284), emergency department visit (99285) and emergency department visit (99283).
Show 4 more questionsShow fewer questions
Where did Dr. William Clark Griggs go to medical school?
Dr. Griggs graduated from Medical University of South Carolina College of Medicine in 1984.
What drugs does Dr. William Clark Griggs prescribe most?
In 2024 Medicare Part D data, Dr. Griggs' most prescribed drugs by claims were Methylprednisolone, Hydrocodone-Acetaminophen and Tramadol HCl.
Has Dr. William Clark Griggs received payments from drug or device companies?
CMS Open Payments shows $17 in general payments to Dr. Griggs from 1 company from 2017 to 2017. The largest total came from Bioventus LLC.
How long has Dr. William Clark Griggs been practicing?
Dr. Griggs graduated from medical school in 1984, 42 years ago.
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