NPPES file of Aug 9, 2026

Sigmund Ian Tannenbaum, MD

Urology Physician · Greensboro, NC

Sigmund Ian Tannenbaum, MD is a urology physician with a practice address in Greensboro, North Carolina, and NPI 1225024540, issued on Sep 22, 2005. Check the license (North Carolina 20977, 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
1225024540
Name
Sigmund Ian Tannenbaum
Credential
MD
Primary taxonomy
Urology Physician 208800000X
License number
20977 NC
Self-reported in NPPES; status is on the state search
Practice location
509 N Elam Ave FL 2, Greensboro, NC 27403
Phone
(336) 274-1114
Enumerated
Sep 22, 2005
Record last updated
Feb 11, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(336) 232-5325
Medicaid ID
8981526 NC
Medicare enrollment
Enrolled (PECOS I20040714001310); accepts Medicare assignment
Medical or professional school
Duke University School Of Medicine, 1975
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 509 N Elam Ave FL 2

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

  1. Eugene Bell, M.D.Urology Physician1588992168
  2. Lester Borden, MDUrology Physician1245249929
  3. Stephen Dahlstedt, MDUrology Physician1861487936
  4. Amanda Dancy, PA-CSurgical Physician Assistant1568467272
  5. Jennaya Davis, AGNP-CFamily Nurse Practitioner1134736135
  6. Matthew Eskridge, MDUrology Physician1588747539

Verify Sigmund Ian Tannenbaum in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNorth Carolina Medical Board
    Search for license 20977
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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88% fewer Medicare Part D claims than the average urology physician in 2024

162 Medicare Part D claims for 44 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.

  1. Sigmund Tannenbaum162
  2. Specialty average1,340

Most prescribed

  1. Tamsulosin Hcl54 claims
  2. Myrbetriq31 claims
  3. Finasteride12 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.

Bills Medicare through one group practice

  1. Wake Forest University Health SciencesGreensboro, NC

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

Sigmund Ian Tannenbaum among 506 urology physician records in North Carolina

Sigmund Ian Tannenbaum, MD is one of 506 urology physician records with a practice address in North Carolina. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 83% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated1975 · median 2005 among the 329 with a school on file
  • Record last updated2011 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Urology Physician providers in North Carolina

There are 506 urology physician records in North Carolina.

The 8 urology physician records with the nearest ZIP codes

  1. Eugene Bell, M.D.Greensboro, NC 274031588992168
  2. Lester Borden, MDGreensboro, NC 274031245249929
  3. Stephen Dahlstedt, MDGreensboro, NC 274031861487936
  4. Matthew Eskridge, MDGreensboro, NC 274031588747539
  5. David Grapey, MDGreensboro, NC 274031295720274
  6. Benjamin Herrick, M.D.Greensboro, NC 274031588838965
  7. Houston Kimbrough, MDGreensboro, NC 274031063407146
  8. Scott Macdiarmid, MDGreensboro, NC 274031346222775

Common questions

What is Sigmund Ian Tannenbaum, MD's NPI number?

Sigmund Ian Tannenbaum, MD's National Provider Identifier (NPI) is 1225024540, issued on Sep 22, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Sigmund Ian Tannenbaum, MD located?

The NPPES record lists a practice address at 509 N Elam Ave FL 2, Greensboro, NC, 27403. Phone: (336) 274-1114. Providers update this record themselves, so call before visiting.

How can I verify Sigmund Ian Tannenbaum, MD's license?

NPPES lists North Carolina license number 20977, 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 Sigmund Ian Tannenbaum, MD prescribe under Medicare Part D?

In 2024, Sigmund Ian Tannenbaum, MD had 162 Medicare Part D claims for 44 beneficiaries; the average among urology physician prescribers was 1,340. 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.