Mary E. Klotman, MD
Internal Medicine Physician · Durham, NC
Mary E. Klotman, MD is an internal medicine physician with a practice address in Durham, North Carolina, and NPI 1003846411, issued on Jul 3, 2006. Check the license (North Carolina 27166, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mary E. Klotman
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 27166 NC
200899 NY
Self-reported in NPPES; status is on the state search - Practice location
- 40 Duke Medicine Cir, Durham, NC 27710
- Phone
- (919) 684-8111
- Enumerated
- Jul 3, 2006
- Record last updated
- Mar 27, 2013 (not updated in 13 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 4,056 in North Carolina → Look up another NPI →
Also registered at 40 Duke Medicine Cir
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mary E. Klotman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Carolina Medical Board
Search for license 27166Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $322,098.15
55 payments; by number, the most common kind was travel and lodging; the largest payer was Amgen 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Mary E. Klotman among 4,056 internal medicine physician records in North Carolina
Mary E. Klotman, MD is one of 4,056 internal medicine physician records with a practice address in North Carolina. 82% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 52% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 67% of these records are
- Record last updated2013 · 48% 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 North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
380 internal medicine physician records list a practice address in Durham
They are 380 of the 13,451 NPPES records with a practice address in Durham, and 4,056 internal medicine physician records in North Carolina.
All 4,056 in North Carolina → Every provider in Durham → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Martha Adams, M.D.Durham, NC 277101073606018
- Swati Agrawal, M.D.Durham, NC 277101922191188
- Cheryl Baker, MDDurham, NC 277101356430813
- Richard Frothingham, M.D.Durham, NC 277101912088493
- David Gallagher, MDDurham, NC 277101376575746
- Rania KazanDurham, NC 277101588748495
- James Kelly, MD, MBADurham, NC 277101922004191
- Robert Musser, M.D.Durham, NC 277101669556551
Common questions
What is Mary E. Klotman, MD's NPI number?
Mary E. Klotman, MD's National Provider Identifier (NPI) is 1003846411, issued on Jul 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mary E. Klotman, MD located?
The NPPES record lists a practice address at 40 Duke Medicine Cir, Durham, NC, 27710. Phone: (919) 684-8111. Providers update this record themselves, so call before visiting.
How can I verify Mary E. Klotman, MD's license?
NPPES lists North Carolina license number 27166, 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.
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.