NPPES file of Aug 9, 2026

John Emerson Feldmann, M.D.

Hematology & Oncology Physician · Greensboro, NC

John Emerson Feldmann, M.D. is a hematology & oncology physician with a practice address in Greensboro, North Carolina, and NPI 1639122070, issued on May 18, 2006. Check the license (North Carolina 200300596, 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
1639122070
Name
John Emerson Feldmann
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
200300596 NC
Self-reported in NPPES; status is on the state search
Practice location
2500 Summit Ave, Greensboro, NC 27405
Phone
(336) 621-2500
Enumerated
May 18, 2006
Record last updated
Dec 19, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(336) 478-2541
Medicaid ID
89134NH NC
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 2500 Summit Ave

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

  1. Sophia Campbell, LCSWAClinical Social Worker1801622287
  2. Monica Carter, DOInternal Medicine Physician1417057787
  3. Kimberly Goldstein, M.ED.Professional Counselor1295930790
  4. Kimberly Grove, LCSWClinical Social Worker1649961400
  5. Neil Hall, MDGeriatric Medicine (Family Medicine) Physician1194788877
  6. Tracy Hart, LCMHCMental Health Counselor1780374041

Verify John Emerson Feldmann in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNorth Carolina Medical Board
    Search for license 200300596    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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89% fewer Medicare Part D claims than the average hematology & oncology physician in 2024

94 Medicare Part D claims for 67 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 26 claims were for opioids.

  1. John Feldmann94
  2. Specialty average877

Most prescribed

  1. Morphine Sulfate11 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.

Hematology & Oncology Physician providers in North Carolina

There are 431 hematology & oncology physician records in North Carolina.

All 431 in North Carolina → Every provider in Greensboro →

Other hematology & oncology physician records in North Carolina

  1. Jorge Abdallah, MDGreenville, NC1255349361
  2. Thomas AberantDurham, NC1932282175
  3. Haritha Ackula, MBBSKinston, NC1346775293
  4. Soheir Adam, MDDurham, NC1366690711
  5. Kavita AgrawalBurlington, NC1336591106
  6. Jing Ai, MDCharlotte, NC1881837763
  7. Carol Albright, M.D.Winston Salem, NC1558538983
  8. Fatima Ali, MDMonroe, NC1487178737
  9. Angela Alistar, MDWinston Salem, NC1831349745
  10. Abed Aljamal, MDDurham, NC1275196578

Common questions

What is John Emerson Feldmann, M.D.'s NPI number?

John Emerson Feldmann, M.D.'s National Provider Identifier (NPI) is 1639122070, issued on May 18, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John Emerson Feldmann, M.D. located?

The NPPES record lists a practice address at 2500 Summit Ave, Greensboro, NC, 27405. Phone: (336) 621-2500. Providers update this record themselves, so call before visiting.

How can I verify John Emerson Feldmann, M.D.'s license?

NPPES lists North Carolina license number 200300596, 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 John Emerson Feldmann, M.D. prescribe under Medicare Part D?

In 2024, John Emerson Feldmann, M.D. had 94 Medicare Part D claims for 67 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.