NPPES file of Aug 9, 2026

Gregory J. Merten, M.D.

Nephrology Physician · Charlotte, NC

Gregory J. Merten, M.D. is a nephrology physician with a practice address in Charlotte, North Carolina, and NPI 1154308435, issued on Dec 28, 2005. Check the license (North Carolina 2002-00256, as entered in NPPES) on the North Carolina Medical Board; 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
1154308435
Name
Gregory J. Merten
Credential
M.D.
Primary taxonomy
Nephrology Physician 207RN0300X
License number
2002-00256 NC
Self-reported in NPPES; status is on the state search
Practice location
10710 Sikes PL Ste 100, Charlotte, NC 28277
Phone
(704) 248-5101
Enumerated
Dec 28, 2005
Record last updated
Apr 2, 2025
Fax
(704) 248-5120
Medicaid ID
5904085 NC
Medicare enrollment
Enrolled (PECOS I20060920000502); accepts Medicare assignment
Medical or professional school
University Of Minnesota Medical School, 2000
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 10710 Sikes PL Ste 100

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

  1. Melissa Bevins, PA-CPhysician Assistant1144313172
  2. Courtney Blocker, FNP-CFamily Nurse Practitioner1134534399
  3. Dharmika Desai, NPNurse Practitioner1033846498
  4. Edward Fisher, MDNephrology Physician1841272416
  5. Verachai Lohavichan, M.D.Nephrology Physician1568428159
  6. Andrew Norris, NP-CNurse Practitioner1780031971

Verify Gregory J. Merten in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNorth Carolina Medical Board
    Search for license 2002-00256
    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 North Carolina license search

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48% fewer Medicare Part D claims than the average nephrology physician in 2024

757 Medicare Part D claims for 203 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.

  1. Gregory Merten757
  2. Specialty average1,465

Most prescribed

  1. Calcitriol106 claims
  2. Furosemide68 claims
  3. Amlodipine Besylate51 claims
  4. Losartan Potassium46 claims
  5. Doxazosin Mesylate44 claims
  6. Lisinopril41 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: $139.62

3 payments; by number, the most common kind was food and beverage; the largest payer was Bayer Healthcare Pharmaceuticals Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gregory Merten$139.62
  2. Specialty average$3,091.37

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. Metrolina Nephrology Associates PACharlotte, NC

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

Nephrology Physician providers in North Carolina

There are 403 nephrology physician records in North Carolina.

Other nephrology physician records in North Carolina

  1. Sosan Abdullah, MDMorganton, NC1679664486
  2. Tariq Abo-Kamil, MDHenderson, NC1124077664
  3. Moses Aboagye-Kumi, M.D.Fayetteville, NC1497707640
  4. Pranab Acharya, M.D., MPHMonroe, NC1629385117
  5. Maureen Achuko, M.D.Fayetteville, NC1245239136
  6. Patricia Adams, MDWinston Salem, NC1992780282
  7. Adeyinka Adegoroye, MB CHBHigh Point, NC1952500423
  8. Syed Ahmed, M.D.Shelby, NC1568478683
  9. Joseph Aiello, M.D.Asheville, NC1942203310
  10. Anwar Al-HaidaryWilson, NC1205829066

Common questions

What is Gregory J. Merten, M.D.'s NPI number?

Gregory J. Merten, M.D.'s National Provider Identifier (NPI) is 1154308435, issued on Dec 28, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Gregory J. Merten, M.D. located?

The NPPES record lists a practice address at 10710 Sikes PL Ste 100, Charlotte, NC, 28277. Phone: (704) 248-5101. Providers update this record themselves, so call before visiting.

How can I verify Gregory J. Merten, M.D.'s license?

NPPES lists North Carolina license number 2002-00256, as entered by the provider. Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Gregory J. Merten, M.D. prescribe under Medicare Part D?

In 2024, Gregory J. Merten, M.D. had 757 Medicare Part D claims for 203 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.