William I. Mariencheck, MD
Pulmonary Disease Physician · Winston Salem, NC
William I. Mariencheck, MD is a pulmonary disease physician with a practice address in Winston Salem, North Carolina, and NPI 1114995909, issued on Mar 9, 2006. Check the license (North Carolina 9800626, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.
- Name
- William I. Mariencheck
- Credential
- MD
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License numbers
- 9800626 NC
MD34221 TN
Self-reported in NPPES; status is on the state search - Practice location
- Medical Center Blvd, Winston Salem, NC 27157
- Phone
- (336) 716-2255
- Enumerated
- Mar 9, 2006
- Record last updated
- Aug 9, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicaid ID
- 3851229 TN
- Medicare enrollment
- Enrolled (PECOS I20190923002059); accepts Medicare assignment
- Medical or professional school
- Washington University School Of Medicine, 1994
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 429 in North Carolina → Look up another NPI →
Also registered at Medical Center Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Franco Abad, PAPhysician Assistant1154017440
- Mohammed Abdulhaleem, MDHospitalist Physician1023472693
- Firas Abdulmajeed, M.D.Internal Medicine Physician1427358043
- Nuhad Abou Zeid, MDNeurology Physician1144427766
- Rachel AbrahamStudent in an Organized Health Care Education/Training Program1790451987
- Jon Abramson, MDPediatric Infectious Diseases Physician1033194691
Verify William I. Mariencheck in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Carolina Medical Board
Search for license 9800626Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% fewer Medicare Part D claims than the average pulmonary disease physician in 2024
455 Medicare Part D claims for 66 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 71% of claims.
Most prescribed
- Albuterol Sulfate Hfa91 claims
- Trelegy Ellipta57 claims
- Ventolin Hfa37 claims
- Prednisone33 claims
- Anoro Ellipta32 claims
- Symbicort32 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
- Wake Forest University Health SciencesWinston Salem, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William I. Mariencheck among 429 pulmonary disease physician records in North Carolina
William I. Mariencheck, MD is one of 429 pulmonary disease physician records with a practice address in North Carolina. 84% 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 13% of them.
- NPI issued2006 · 13% of these records are older, 46% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 78% of these records are
- Graduated1994 · median 2001 among the 333 with a school on file
- Record last updated2019 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pulmonary Disease Physician providers in North Carolina
There are 429 pulmonary disease physician records in North Carolina.
All 429 in North Carolina → Every provider in Winston Salem → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- Norman Adair, MDWinston Salem, NC 271571053396499
- Eugene Bleecker, MDWinston Salem, NC 271571811971104
- Arjun Chatterjee, M.D., M.S.Winston Salem, NC 271571679566137
- Jessica Field, MDWinston Salem, NC 271571902849243
- Edward Haponik, M.D.Winston Salem, NC 271571841249984
- Gnanaraj Joseph, MDWinston Salem, NC 271571700847738
- Matthew Miles, M.D.Winston Salem, NC 271571316954522
- Wendy Moore, MDWinston Salem, NC 271571235112376
Common questions
What is William I. Mariencheck, MD's NPI number?
William I. Mariencheck, MD's National Provider Identifier (NPI) is 1114995909, issued on Mar 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William I. Mariencheck, MD located?
The NPPES record lists a practice address at Medical Center Blvd, Winston Salem, NC, 27157. Phone: (336) 716-2255. Providers update this record themselves, so call before visiting.
How can I verify William I. Mariencheck, MD's license?
NPPES lists North Carolina license number 9800626, 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 William I. Mariencheck, MD prescribe under Medicare Part D?
In 2024, William I. Mariencheck, MD had 455 Medicare Part D claims for 66 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. 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.