William Gregory Berkley, M.D.
Internal Medicine Physician · Boiling Springs, SC
William Gregory Berkley, M.D. is an internal medicine physician with a practice address in Boiling Springs, South Carolina, and NPI 1457368730, issued on Aug 1, 2006. Check the license (South Carolina 95806, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- William Gregory Berkley
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 95806 SC
GA034540 GA
N7524 TX
Self-reported in NPPES; status is on the state search - Practice location
- 2400 Boiling Springs RD, Boiling Springs, SC 29316
- Phone
- (864) 599-0731
- Enumerated
- Aug 1, 2006
- Record last updated
- Oct 28, 2025
- Fax
- (864) 599-0791
- Medicare enrollment
- Enrolled (PECOS I20251116000012); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 2400 Boiling Springs RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jennifer Kidane, PAPhysician Assistant1164350955
- Constance Mudda, FNP-CFamily Nurse Practitioner1083292148
- Jarrell Nesmith, D.OFamily Medicine Physician1407267263
- Chidimma Nzeh, MDFamily Medicine Physician1477131365
- Alexander Poole, PA-CPhysician Assistant1376356535
- Katherine Spinks, MDInternal Medicine Physician1902195472
Verify William Gregory Berkley in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 95806Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
3.2 times the Medicare Part D claims of the average internal medicine physician in 2024
10,306 Medicare Part D claims for 818 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 236 claims were for opioids.
Most prescribed
- Atorvastatin Calcium516 claims
- Rosuvastatin Calcium455 claims
- Levothyroxine Sodium441 claims
- Amlodipine Besylate281 claims
- Tamsulosin Hcl226 claims
- Lisinopril209 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,379.23
100 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Prisma Health University Medical GroupBoiling Springs, SC
- South Austin Family Practice Clinic, PLLCAustin, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
3 internal medicine physician records list a practice address in Boiling Springs
They are 3 of the 173 NPPES records with a practice address in Boiling Springs, and 1,881 internal medicine physician records in South Carolina.
All 3 in Boiling Springs → All 1,881 in South Carolina → Every provider in Boiling Springs →
Other internal medicine physician records in South Carolina
- Sheharyar Abbasi, DOMyrtle Beach, SC1619617222
- John Abbott, M.D.Sumter, SC1093830762
- Amjad Abdulrahman, MDIrmo, SC1194718841
- Alvin Abinsay, M.D.Marion, SC1689608002
- Izabela Abissi, DOCharleston, SC1376387803
- Tinu Abraham, MDGreenwood, SC1194354399
- Natallia Abramovich, MDSeneca, SC1568647949
- Ibrahim Abu Dayah, MDMyrtle Beach, SC1306368667
- Lauren Abusal, MD, MSCRMyrtle Beach, SC1093552911
- John Adams, MDElgin, SC1750395570
Common questions
What is William Gregory Berkley, M.D.'s NPI number?
William Gregory Berkley, M.D.'s National Provider Identifier (NPI) is 1457368730, issued on Aug 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Gregory Berkley, M.D. located?
The NPPES record lists a practice address at 2400 Boiling Springs RD, Boiling Springs, SC, 29316. Phone: (864) 599-0731. Providers update this record themselves, so call before visiting.
How can I verify William Gregory Berkley, M.D.'s license?
NPPES lists South Carolina license number 95806, as entered by the provider. Search the South Carolina Board of Medical Examiners at https://verify.llronline.com/LicLookup/Med/Med.aspx?div=22. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Gregory Berkley, M.D. prescribe under Medicare Part D?
In 2024, William Gregory Berkley, M.D. had 10,306 Medicare Part D claims for 818 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.