Active NPI 1154494003 Individual Practitioner Male Practitioner

Dr. Mark Daryl Tieman , MD

Internal Medicine • Commack, NY

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Mark Tieman, MD is a certified Internal Medicine practicing in Commack, NY. With approximately 40 years of clinical experience since graduating from Albert Einstein College Of Medicine Of Yeshiva University in 1986, Dr. Tieman delivers high-quality medical care to the local community at 356 VETERANS MEMORIAL HWY.

Dr. Tieman accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's, established patient outpatient office visit, telephone medical discussion with physician. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

356 Veterans Memorial Hwy

Commack, NY 117254332

Telephone 6318580400

Fax 6315432785

Associated Practice Facility / Clinic

🏢 Mark Tieman, Md, Pc Facility NPI 1821375940

Medicare Profile & Education

Medical School

Albert Einstein College Of Medicine Of Yeshiva University

Graduation Year

1986

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Commack, NY

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

40 Yrs +9.0 yrs vs City Avg

City Avg: 31.0 Yrs

State Avg: 29.4 Yrs

Regional Practice Density

21 Specialists

Practicing in Commack, NY (12979 Statewide)

Telehealth Adoption Rate

52.4% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

58.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Tieman (40 Years) 40 Yrs

Commack Specialty Average (31.0 Years) 31.0 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's	361	56	$75.00	$18.24
99213 Established patient office or other outpatient visit, typically 15 minutes	175	38	$266.43	$103.62
99443 Telephone medical discussion with physician, 21-30 minutes	131	34	$325.00	$145.61
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	122	38	$445.00	$145.05
99442 Telephone medical discussion with physician, 11-20 minutes	114	36	$180.00	$102.68
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	12	12	$300.00	$147.62

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	235	40	$256.49	$104.91
99442 Telephone medical discussion with physician, 11-20 minutes	157	43	$180.00	$105.34
99443 Telephone medical discussion with physician, 21-30 minutes	115	38	$325.00	$146.98
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	101	34	$445.00	$148.44
99483 Assessment of and care planning for patient with impaired thought processing, typically 50 minutes	38	38	$1100.00	$315.00

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	283	46	$254.65	$108.64
99442 Telephone medical discussion with physician, 11-20 minutes	155	42	$180.00	$107.62
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	143	43	$445.00	$151.70
99443 Telephone medical discussion with physician, 21-30 minutes	117	43	$325.00	$151.56
99483 Assessment of and care planning for patient with impaired thought processing, typically 50 minutes	23	23	$1100.00	$330.35

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	291	49	$255.00	$110.22
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	185	54	$445.00	$155.82
99442 Telephone medical discussion with physician, 11-20 minutes	149	43	$180.00	$111.16
99443 Telephone medical discussion with physician, 21-30 minutes	92	36	$325.00	$156.76
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	23	23	$300.00	$198.65
G0442 Annual alcohol misuse screening, 5 to 15 minutes	22	22	$50.00	$22.45

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	222	49	$255.00	$89.62
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	133	45	$445.00	$129.24
99442 Telephone medical discussion with physician, 11-20 minutes	55	27	$180.00	$89.96
99443 Telephone medical discussion with physician, 21-30 minutes	50	25	$325.00	$129.67
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	44	15	$200.00	$55.06
36415 Insertion of needle into vein for collection of blood sample	22	17	$50.00	$2.97

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	364	62	$227.66	$86.09
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	180	60	$387.25	$125.46
36415 Insertion of needle into vein for collection of blood sample	106	45	$43.96	$2.94
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	93	19	$190.67	$52.83
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	49	15	$61.22	$19.44
80305 Testing for presence of drug, read by direct observation	19	14	$374.00	$12.35

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	342	61	$100.00	$79.93
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	203	56	$130.00	$117.42
36415 Insertion of needle into vein for collection of blood sample	98	47	$30.00	$2.94
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	22	14	$30.00	$22.75
80305 Testing for presence of drug, read by direct observation	20	11	$374.00	$13.19
90674 Influenza vaccine, quadrivalent derived from cell cultures, preservative and antibiotic free	13	13	$40.00	$23.57
93000 Routine ekg using at least 12 leads including interpretation and report	12	12	$70.00	$19.05

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	287	54	$100.10	$91.84
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	258	59	$130.00	$134.74
36415 Insertion of needle into vein for collection of blood sample	111	45	$30.00	$2.94
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	24	14	$190.00	$181.88
80305 Testing for presence of drug, read by direct observation	21	16	$374.00	$14.66
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	16	11	$30.00	$32.55
93000 Routine ekg using at least 12 leads including interpretation and report	16	13	$70.00	$21.97

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License NY 179172

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Additional State Medicaid & Healthcare Payer Identifiers

Commercial Insurance / Payer ID M.d. License Number

179172 (NY)

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

2 Associated Practitioners

Cindy Demetriou

Nurse Practitioner - Adult Health

NPI 1033592589

Sarah Powers , NP

Nurse Practitioner

NPI 1346499084

Nurse Practitioner

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events

✅

NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍

Updated Practice Location July 08, 2007

Registered at 356 VETERANS MEMORIAL HWY, COMMACK, NY 117254332 (Tel: 6318580400)

📍

Updated Business Mailing Address July 08, 2007

Registered at 34 COPPERDALE LN, HUNTINGTON, NY 117432523 (Tel: 6318580400)

👤

Provider Name / Credentials Updated July 08, 2007

Recorded as MARK TIEMAN, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Internal Medicine (License #179172 in NY)

🟢

Initial NPI Registration & Enumeration November 16, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1154494003

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: November 16, 2006

Last Update: July 08, 2007

Sole Proprietor: No

Update or Correct Profile

Mailing Address

34 Copperdale Ln

Huntington, NY 117432523

Phone: 6318580400

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.