William R. Gammon, MD
Family Medicine Physician · Myrtle Beach, SC
William R. Gammon, MD is a family medicine physician with a practice address in Myrtle Beach, South Carolina, and NPI 1164419941, issued on Oct 5, 2005. Check the license (South Carolina 20322, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- William R. Gammon
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 20322 SC
Self-reported in NPPES; status is on the state search - Practice location
- 101 Mcleod Health Blvd Ste 201, Myrtle Beach, SC 29579
- Phone
- (843) 646-8001
- Enumerated
- Oct 5, 2005
- Record last updated
- Feb 15, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (843) 646-8002
- Medicaid ID
- T43101 SC
- Medicare enrollment
- Enrolled (PECOS I20110223001017); accepts Medicare assignment
- Medical or professional school
- University Of Iowa, Rj & L Carver College Of Medicine, 1993
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,700 in South Carolina → Look up another NPI →
Also registered at 101 Mcleod Health Blvd Ste 201
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Brendan Griesmer, MDInternal Medicine Physician1295767317
- John Karl, MDFamily Medicine Physician1831196773
- Vasiliki Papathanasiou, M.D.Family Medicine Physician1003046889
Verify William R. Gammon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 20322Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.5 times the Medicare Part D claims of the average family medicine physician in 2024
16,114 Medicare Part D claims for 1,036 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 607 claims were for opioids.
Most prescribed
- Atorvastatin Calcium756 claims
- Rosuvastatin Calcium723 claims
- Levothyroxine Sodium487 claims
- Amlodipine Besylate455 claims
- Prednisone390 claims
- Lisinopril359 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: $1,234.87
72 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 55,478 providers of this specialty with any payment received $902.55 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 one group practice
- Mcleod Regional Medical Center OF The Pee Dee IncMyrtle Beach, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William R. Gammon among 2,700 family medicine physician records in South Carolina
William R. Gammon, MD is one of 2,700 family medicine physician records with a practice address in South Carolina. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 92% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1993 · median 2006 among the 1,638 with a school on file
- Record last updated2021 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
87 family medicine physician records list a practice address in Myrtle Beach
They are 87 of the 2,599 NPPES records with a practice address in Myrtle Beach, and 2,700 family medicine physician records in South Carolina.
All 2,700 in South Carolina → Every provider in Myrtle Beach → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Alexis Brown, MDMyrtle Beach, SC 295791245670934
- Kristen Carr, M.D.Myrtle Beach, SC 295791245466960
- Steven Cremer, M.D.Myrtle Beach, SC 295791467428938
- Jason Harrah, M.D.Myrtle Beach, SC 295791043297419
- John Karl, MDMyrtle Beach, SC 295791831196773
- Robert Kimpton, MDMyrtle Beach, SC 295791407916133
- Jeffrey Lindaberry, D.O.Myrtle Beach, SC 295791164414546
- Ashley Locklear-Batton, DOMyrtle Beach, SC 295791366882722
Common questions
What is William R. Gammon, MD's NPI number?
William R. Gammon, MD's National Provider Identifier (NPI) is 1164419941, issued on Oct 5, 2005. An NPI identifies a provider in billing; it is not a license.
Where is William R. Gammon, MD located?
The NPPES record lists a practice address at 101 Mcleod Health Blvd Ste 201, Myrtle Beach, SC, 29579. Phone: (843) 646-8001. Providers update this record themselves, so call before visiting.
How can I verify William R. Gammon, MD's license?
NPPES lists South Carolina license number 20322, 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 R. Gammon, MD prescribe under Medicare Part D?
In 2024, William R. Gammon, MD had 16,114 Medicare Part D claims for 1,036 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.