Mark Daryl Tieman, M.D.
Internal Medicine Physician · Commack, NY
Mark Daryl Tieman, M.D. is an internal medicine physician with a practice address in Commack, New York, and NPI 1154494003, issued on Nov 16, 2006. Check the license (New York 179172, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Mark Daryl Tieman
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 179172 NY
Self-reported in NPPES; status is on the state search - Practice location
- 356 Veterans Memorial Hwy, Commack, NY 11725
- Phone
- (631) 858-0400
- Enumerated
- Nov 16, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (631) 543-2785
- Medicare enrollment
- Enrolled (PECOS I20111216000002); accepts Medicare assignment
- Medical or professional school
- Albert Einstein College Of Medicine Of Yeshiva University, 1986
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 356 Veterans Memorial Hwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mark Daryl Tieman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 179172Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average internal medicine physician in 2024
365 Medicare Part D claims for 39 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 57 claims were for opioids.
Most prescribed
- Alprazolam50 claims
- Oxycodone Hcl24 claims
- Omeprazole21 claims
- Azelastine Hcl15 claims
- Buprenorphine-Naloxone15 claims
- Oxycodone-Acetaminophen14 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.
Mark Daryl Tieman among 12,067 internal medicine physician records in New York
Mark Daryl Tieman, M.D. is one of 12,067 internal medicine physician records with a practice address in New York. 79% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 53% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1986 · median 2002 among the 7,221 with a school on file
- Record last updated2007 · 61% 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
19 internal medicine physician records list a practice address in Commack
They are 19 of the 1,341 NPPES records with a practice address in Commack, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in Commack → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Marc Allen, DOCommack, NY 117251356309892
- Mohammed Azaz, MDCommack, NY 117251356331763
- Richard Balter, MDCommack, NY 117251689766537
- Shamim Begum, MDCommack, NY 117251659431039
- Paul Berger, M.D.Commack, NY 117251952308538
- Mariamma Chelagiri, MDCommack, NY 117251104880392
- Alina Ciobanu, M.D.Commack, NY 117251356349633
- Zoe Goldberg, MDCommack, NY 117251831179225
Common questions
What is Mark Daryl Tieman, M.D.'s NPI number?
Mark Daryl Tieman, M.D.'s National Provider Identifier (NPI) is 1154494003, issued on Nov 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Daryl Tieman, M.D. located?
The NPPES record lists a practice address at 356 Veterans Memorial Hwy, Commack, NY, 11725. Phone: (631) 858-0400. Providers update this record themselves, so call before visiting.
How can I verify Mark Daryl Tieman, M.D.'s license?
NPPES lists New York license number 179172, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark Daryl Tieman, M.D. prescribe under Medicare Part D?
In 2024, Mark Daryl Tieman, M.D. had 365 Medicare Part D claims for 39 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.