NPPES file of Aug 9, 2026

Ronald J. Falk, MD

Nephrology Physician · Chapel Hill, NC

Ronald J. Falk, MD is a nephrology physician with a practice address in Chapel Hill, North Carolina, and NPI 1083787725, issued on Nov 17, 2006. Check the license (North Carolina 21772, 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
1083787725
Name
Ronald J. Falk
Credential
MD
Primary taxonomy
Nephrology Physician 207RN0300X
License number
21772 NC
Self-reported in NPPES; status is on the state search
Practice location
101 Manning Dr, Chapel Hill, NC 27599
Phone
(919) 966-1234
Enumerated
Nov 17, 2006
Record last updated
Jun 5, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(919) 843-5515
Medicaid ID
8931092 NC
Medicare enrollment
Enrolled (PECOS I20100419000297); accepts Medicare assignment
Medical or professional school
University Of North Carolina At Chapel Hill School Of Medicine, 1977
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 101 Manning Dr

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

  1. Kirkwood Adams, MDCardiovascular Disease Physician1710069810
  2. Melanie Adams, PACPhysician Assistant1174695456
  3. Kimberly Adamson, NNPNurse Practitioner1255429577
  4. Mukhtar Adem, M.D.Hospitalist Physician1457445769
  5. Araba Afenyi-Annan, MDClinical Pathology/Laboratory Medicine Physician1275629842
  6. Thaniyyah Ahmad, MDStudent in an Organized Health Care Education/Training Program1023454600

Verify Ronald J. Falk in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNorth Carolina Medical Board
    Search for license 21772
    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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97% fewer Medicare Part D claims than the average nephrology physician in 2024

45 Medicare Part D claims for 11 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.

  1. Ronald Falk45
  2. Specialty average1,465

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.

Bills Medicare through one group practice

  1. University OF North Carolina AT Chapel HillChapel Hill, NC

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

Ronald J. Falk among 403 nephrology physician records in North Carolina

Ronald J. Falk, MD is one of 403 nephrology physician records with a practice address in North Carolina. 86% 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 17% of them.

  • NPI issued2006 · 17% of these records are older, 50% newer
  • In a Medicare fileYes · 86% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated1977 · median 2002 among the 310 with a school on file
  • Record last updated2008 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in North Carolina

There are 403 nephrology physician records in North Carolina.

The 8 nephrology physician records with the nearest ZIP codes

  1. Patrick Archdeacon, MDChapel Hill, NC 275991316167364
  2. Rumulo Colindres, MDChapel Hill, NC 275991629141361
  3. Randal Detwiler, MDChapel Hill, NC 275991306911177
  4. Maria Diaz-Gonzalez Ferris, MDChapel Hill, NC 275991962575621
  5. Katherine Falk, MDChapel Hill, NC 275991023183795
  6. Edwin Fuller, MDChapel Hill, NC 275991922022110
  7. Steven Grossman, MDChapel Hill, NC 275991710052568
  8. Gerald Hladik, M.D.Chapel Hill, NC 275991467566075

Common questions

What is Ronald J. Falk, MD's NPI number?

Ronald J. Falk, MD's National Provider Identifier (NPI) is 1083787725, issued on Nov 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ronald J. Falk, MD located?

The NPPES record lists a practice address at 101 Manning Dr, Chapel Hill, NC, 27599. Phone: (919) 966-1234. Providers update this record themselves, so call before visiting.

How can I verify Ronald J. Falk, MD's license?

NPPES lists North Carolina license number 21772, 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 Ronald J. Falk, MD prescribe under Medicare Part D?

In 2024, Ronald J. Falk, MD had 45 Medicare Part D claims for 11 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.