Active NPI 1326197963 Individual Practitioner Male Practitioner

Dr. Mark J. Marshall , DO

Internal Medicine • Sharon, CT

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Mark Marshall, DO is a certified Internal Medicine practicing in Sharon, CT. With approximately 17 years of clinical experience since completing medical education in 2009, Dr. Marshall delivers high-quality medical care to the local community at 50 HOSPITAL HILL RD.

Dr. Marshall is affiliated with Nuvance Health Medical Practice Pc and accepts Medicare assignment.

Frequently performed procedures and clinical services include subsequent hospital care with moderate levelof medical decision making, if using time, at least, hospital discharge day management, more than, initial hospital care with straightforward or low-level medical decision making, if using time, at least. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

50 Hospital Hill Rd
Sharon Hospital

Sharon, CT 060692096

Telephone 8603644201

Fax 8603644211

Associated Practice Facility / Clinic

🏢 Vassar Health Connecticut, Inc. Facility NPI 1235131442

Medicare Profile & Education

Medical School

Other

Graduation Year

2009

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Sharon, CT

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

17 Yrs -4.3 yrs vs City Avg

City Avg: 21.3 Yrs

State Avg: 30.4 Yrs

Regional Practice Density

5 Specialists

Practicing in Sharon, CT (2753 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

66.2% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Marshall (17 Years) 17 Yrs

Sharon Specialty Average (21.3 Years) 21.3 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
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	73	50	$383.41	$124.18
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	54	43	$206.15	$82.46
99239 Hospital discharge day management, more than 30 minutes	43	43	$397.84	$120.23
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	23	23	$395.13	$137.15
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	18	18	$574.17	$181.32
99238 Hospital discharge day management, 30 minutes or less	13	13	$204.31	$85.23

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	42	26	$381.00	$125.59
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	36	27	$198.00	$83.50
99239 Hospital discharge day management, more than 30 minutes	25	25	$394.00	$121.36
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	20	19	$376.00	$137.41
99238 Hospital discharge day management, 30 minutes or less	14	14	$201.00	$85.60

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	93	71	$366.68	$108.13
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	74	53	$191.07	$75.38
99239 Hospital discharge day management, more than 30 minutes	48	47	$379.35	$109.75
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	36	36	$532.78	$209.34
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	19	19	$362.74	$142.79
99217 Hospital observation care on day of discharge	14	14	$193.14	$75.90

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	312	162	$363.81	$108.81
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	187	117	$242.94	$75.71
99239 Hospital discharge day management, more than 30 minutes	181	169	$377.27	$112.01
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	92	87	$685.01	$210.99
99217 Hospital observation care on day of discharge	25	24	$239.82	$76.46
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	20	20	$466.23	$143.27
99238 Hospital discharge day management, 30 minutes or less	13	13	$254.01	$76.46

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	150	99	$386.00	$107.45
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	137	97	$267.00	$74.14
99239 Hospital discharge day management, more than 30 minutes	115	104	$398.00	$110.75
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	79	75	$752.00	$208.68
99231 Follow-up hospital inpatient care per day, typically 15 minutes	26	16	$146.00	$39.16
99238 Hospital discharge day management, 30 minutes or less	26	26	$269.00	$73.04
99217 Hospital observation care on day of discharge	23	23	$193.00	$75.21
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	15	15	$515.60	$141.66
99291 Critical care, first 30-74 minutes	15	11	$834.00	$229.42

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	210	122	$182.00	$76.94
99239 Hospital discharge day management, more than 30 minutes	117	107	$271.00	$112.71
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	108	69	$263.00	$109.90
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	78	74	$512.00	$213.61
99231 Follow-up hospital inpatient care per day, typically 15 minutes	21	12	$100.00	$41.62
99217 Hospital observation care on day of discharge	17	17	$184.00	$77.63
99238 Hospital discharge day management, 30 minutes or less	11	11	$183.00	$77.61
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	11	11	$346.00	$145.06

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	467	235	$182.07	$77.05
99239 Hospital discharge day management, more than 30 minutes	223	202	$269.04	$114.18
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	151	103	$263.16	$110.50
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	151	146	$512.41	$214.31
99217 Hospital observation care on day of discharge	31	31	$182.91	$77.91
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	26	26	$346.00	$145.09
99291 Critical care, first 30-74 minutes	25	17	$694.00	$235.58
99231 Follow-up hospital inpatient care per day, typically 15 minutes	23	17	$100.00	$41.57
99238 Hospital discharge day management, 30 minutes or less	15	15	$183.00	$77.87

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	294	173	$185.13	$75.06
99239 Hospital discharge day management, more than 30 minutes	159	147	$223.68	$110.90
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	136	101	$266.78	$108.41
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	132	123	$523.96	$210.57
99217 Hospital observation care on day of discharge	25	25	$151.65	$76.55
99291 Critical care, first 30-74 minutes	24	14	$585.52	$231.98
99231 Follow-up hospital inpatient care per day, typically 15 minutes	17	15	$100.73	$40.95
99156 Moderate sedation services by physician not performing a procedure, patient 5 years of age or older, first 15 minutes	15	15	$162.62	$78.41
99220 Hospital observation care, typically 70 minutes	14	14	$382.28	$168.58
99157 Use of a drug to induce depression of consciousness by physician not performing a procedure, each additional 15 minutes	11	11	$123.26	$59.43

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License CT 000529

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.

Internal Medicine

NUCC Taxonomy Code: 207R00000X

State License NY 203678

Hospital & Practice Group Affiliations

Nuvance Health Medical Practice Pc

50 Hospital Hill Rd, Sharon, CT 060692096

Phone: 8603644532

Practice Associates & Co-Workers

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

30 Associated Practitioners

Suzanne Thompson , APRN

Nurse Practitioner

NPI 1003996273

Advanced Practice Registered Nurse

Rachel Sobol , RD

Dietitian, Registered

NPI 1013231885

Registered Dietitian

Dr. Michael Kauff , MD

Specialist

NPI 1013902659

Doctor of Medicine (M.D.)

Jeffrey Litishin , MPT

Physical Therapist

NPI 1043349319

Master of Physical Therapy

Birgit Clague , AGACNP-BC

Nurse Practitioner - Acute Care

NPI 1043936578

Adult-Gerontology Acute Care Nurse Practitioner (Board Certified)

Dr. Mustafa Ugurlu , MD

Surgery

NPI 1063491249

Doctor of Medicine (M.D.)

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 50 HOSPITAL HILL RD, SHARON HOSPITAL, SHARON, CT 060692096 (Tel: 8603644201)

📍

Updated Business Mailing Address July 08, 2007

Registered at 50 HOSPITAL HILL RD, SHARON HOSPITAL, SHARON, CT 060692096 (Tel: 8603644201)

👤

Provider Name / Credentials Updated July 08, 2007

Recorded as MARK MARSHALL, D.O.

🎓

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

Internal Medicine (License #000529 in CT)

🟢

Initial NPI Registration & Enumeration January 10, 2007

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: 1326197963

Entity Type:

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

Enumeration Date: January 10, 2007

Last Update: July 08, 2007

Sole Proprietor: No

Update or Correct Profile

Mailing Address

50 Hospital Hill Rd, Sharon Hospital

Sharon, CT 060692096

Phone: 8603644201

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.