NPPES file of Aug 9, 2026

David Paul Mendoza Guirao, M.D.

Internal Medicine Physician · Greenville, SC

David Paul Mendoza Guirao, M.D. is an internal medicine physician with a practice address in Greenville, South Carolina, and NPI 1750463972, issued on Oct 19, 2006. Check the license (South Carolina 28336, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1750463972
Name
David Paul Mendoza Guirao
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
28336 SC
Self-reported in NPPES; status is on the state search
Practice location
1025 Verdae Blvd, Greenville, SC 29607
Phone
(864) 240-5009
Enumerated
Oct 19, 2006
Record last updated
Jul 26, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(864) 240-5028
Medicare enrollment
Enrolled (PECOS I20051110000615); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1025 Verdae Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Robert Bayliss, M.D.Internal Medicine Physician1356326383
  2. Katherine Birchenough, MDEmergency Medicine Physician1073567368
  3. James Bloodworth, MDInternal Medicine Physician1730164781
  4. Caroline Brownlee, MDInternal Medicine Physician1003898651
  5. John Bucci, PTPhysical Therapist1376524744
  6. Thomas Chambliss, M.D.Internal Medicine Physician1578586202

Verify David Paul Mendoza Guirao in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
    Search for license 28336
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the South Carolina license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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90% more Medicare Part D claims than the average internal medicine physician in 2024

6,035 Medicare Part D claims for 473 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 141 claims were for opioids.

  1. David Guirao6,035
  2. Specialty average3,176

Most prescribed

  1. Amlodipine Besylate343 claims
  2. Atorvastatin Calcium307 claims
  3. Lisinopril228 claims
  4. Omeprazole220 claims
  5. Levothyroxine Sodium202 claims
  6. Losartan Potassium162 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: $15.84

1 payment: food and beverage; the largest payer was Astellas Pharma US Inc. 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.

  1. David Guirao$15.84
  2. Specialty average$1,303.06

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

  1. Prisma Health University Medical GroupGreenville, SC

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

David Paul Mendoza Guirao among 1,881 internal medicine physician records in South Carolina

David Paul Mendoza Guirao, M.D. is one of 1,881 internal medicine physician records with a practice address in South Carolina. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 58% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1997 · median 2006 among the 1,119 with a school on file
  • Record last updated2013 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

253 internal medicine physician records list a practice address in Greenville

They are 253 of the 10,264 NPPES records with a practice address in Greenville, and 1,881 internal medicine physician records in South Carolina.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Robert Bayliss, M.D.Greenville, SC 296071356326383
  2. James Bloodworth, MDGreenville, SC 296071730164781
  3. Caroline Brownlee, MDGreenville, SC 296071003898651
  4. Robert Dubose, MDGreenville, SC 296071659356988
  5. Steven Graddick, MDGreenville, SC 296071265417380
  6. Daniel Grover, MDGreenville, SC 296071467437921
  7. Jai Hwang, MDGreenville, SC 296071366427775
  8. David Koontz, MDGreenville, SC 296071750366647

Common questions

What is David Paul Mendoza Guirao, M.D.'s NPI number?

David Paul Mendoza Guirao, M.D.'s National Provider Identifier (NPI) is 1750463972, issued on Oct 19, 2006. An NPI identifies a provider in billing; it is not a license.

Where is David Paul Mendoza Guirao, M.D. located?

The NPPES record lists a practice address at 1025 Verdae Blvd, Greenville, SC, 29607. Phone: (864) 240-5009. Providers update this record themselves, so call before visiting.

How can I verify David Paul Mendoza Guirao, M.D.'s license?

NPPES lists South Carolina license number 28336, 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 David Paul Mendoza Guirao, M.D. prescribe under Medicare Part D?

In 2024, David Paul Mendoza Guirao, M.D. had 6,035 Medicare Part D claims for 473 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.