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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MR. GREGORY ROBERT MESA PA-C
NPI 1023144193
Physician Assistant in Columbia, SC

Active since February 26, 2007PECOS EnrolledAccepts Medicare Assignment
SC HOUSE CALLS, INC., 111 DOCTORS CIR., COLUMBIA, SC 29203(800) 491-0909 Get Directions Write a Review

NPPES record last updated: August 10, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Aug 10, 2026, Jan 7, 2025 (2 updates tracked since 2025).

About Mr. Gregory Robert Mesa Pa-c NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. GREGORY ROBERT MESA PA-C (NPI 1023144193) is an individual physician assistant in Columbia, South Carolina, licensed in South Carolina (5442) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS, is affiliated with Piedmont Medical Center, and is a graduate of Other (2000).

NPPES Registry Identity

NPI1023144193
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameMR. GREGORY ROBERT MESACredential: PA-C
Location AddressSC HOUSE CALLS, INC., 111 DOCTORS CIR.Columbia, SC 29203
Mailing AddressSc House Calls, Inc., 111 Doctors Cir.Columbia, SC 29203 · (800) 491-0909
Phone(800) 491-0909
Sole ProprietorNo
Medical School CMSOtherGraduated 2000
Enumeration DateFebruary 26, 2007
Last NPPES UpdateAugust 10, 20262 updates tracked since enumeration
NPPES CertifiedAugust 10, 2026
✔ NPI 1023144193 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
Licenses✔ Licensed in SC · 5442✔ Licensed in NC · 103090
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
SC HOUSE CALLS, INC., Columbia, SC 29203
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Other Identifiers 17

Medicaid348944CNC
Medicaid348944ANC
Other550847506Se Medicare Complete
Other550847506Workers Comp
OtherDB5806Railroad
OtherP00163937Railroad
OtherP00163937Railroad Insurance
OtherP61859Huma Humana
Other103090NC · State License Number
Other147223XXPreferred Care
Other550847506Commercial Insurance
Other550847506Champus
Other550847506Humana
Medicaid8913525NC
OtherD1819Medcost Preferred
Other267311481Champus
Other5442SC · State License Number

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mr. Gregory Robert Mesa Pa-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9234030313
PECOS Enrollment IDI20260701000383
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Piedmont Medical Center

Acute Care Hospitals · Rock Hill, SC
2/5 CMS rating
OwnershipProprietary
CMS Certification Number420002
Location1731 Frank Gaston BlvdRock Hill, SC 29732 · York County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 29203 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$83.18 typical visit price
range $53.57 – $163.84
Typical copayment $20.79 (range $13.39 – $40.96)
Most-billed visit code 99203
Established Patient
$67.12 typical visit price
range $16.96 – $133.52
Typical copayment $16.78 (range $4.24 – $33.38)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

HANNAH DUNCAN OT
Occupational Therapist
SC HOUSE CALLS, INC., 111 DOCTOR CIR
COLUMBIA, SC 29203
Richland County (800) 491-0909
MRS. NATALIA NICOLE MELORO APRN
Nurse Practitioner
SC HOUSE CALLS, INC., 111 DOCTORS CIR.
COLUMBIA, SC 29203
Richland County (800) 491-0909
MRS. MARISA JOY POMICTER LMSW
Social Worker
SC HOUSE CALLS, INC., 111 DOCTORS CIR.
COLUMBIA, SC 29203
Richland County (800) 491-0909
MRS. ODYNE ROSE LACOSSIERE-DORVILUS APRN
Nurse Practitioner (Family)
SC HOUSE CALLS, INC., 111 DOCTORS CIR.
COLUMBIA, SC 29203
Richland County (800) 491-0909
BRIAN SPILLMAN PT
Physical Therapist
SC HOUSE CALLS, INC., 111 DOCTORS CIR.
COLUMBIA, SC 29203
Richland County (800) 491-0909
DR. LAUREN GALES CHEWNING PT
Physical Therapist
SC HOUSE CALLS, INC., 111 DOCTORS CIR.
COLUMBIA, SC 29203
Richland County (800) 491-0909
MRS. DORESEA L LEWIS APRN
Nurse Practitioner
SC HOUSE CALLS, INC., 111 DOCTORS CIR.
COLUMBIA, SC 29203
Richland County (800) 491-0909
MRS. CHRISTINA GARVIN HUGHES APRN
Nurse Practitioner (Family)
SC HOUSE CALLS, INC., 111 DOCTORS CIR.
COLUMBIA, SC 29203
Richland County (800) 491-0909

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gregory Mesa's NPI number?

The NPI number for Gregory Mesa is 1023144193. It was assigned to this individual provider in the NPPES registry on February 26, 2007.

Where is Gregory Mesa located?

Gregory Mesa practices at Sc House Calls, Inc. 111 Doctors Cir., Columbia, SC 29203. The listed phone number is (800) 491-0909.

What is Gregory Mesa's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Gregory Mesa enrolled in Medicare?

Yes. Gregory Mesa is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Gregory Mesa affiliated with any hospitals?

According to CMS data, Gregory Mesa is affiliated with Piedmont Medical Center.

When was this NPI record last updated?

The NPPES record for Gregory Mesa was last updated on August 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.