Active NPI 1235109653 Individual Practitioner Female Practitioner

Dr. Lisa Christine Merrill , MD

Internal Medicine • Williamsburg, VA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Lisa Merrill, MD is a certified Internal Medicine practicing in Williamsburg, VA. With approximately 24 years of clinical experience since graduating from Medical College Of Ohio in 2002, Dr. Merrill delivers high-quality medical care to the local community at 100 SENTARA CIR.

Dr. Merrill is affiliated with Sentara Medical Group 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 moderate level of 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

100 Sentara Cir
Room 2c

Williamsburg, VA 231885713

Telephone 7579847218

Fax 7579847210

Associated Practice Facility / Clinic

🏢 Sentara Hospitals Facility NPI 1619938149

Medicare Profile & Education

Medical School

Medical College Of Ohio

Graduation Year

2002

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Williamsburg, VA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

24 Yrs -2.5 yrs vs City Avg

City Avg: 26.5 Yrs

State Avg: 26.1 Yrs

Regional Practice Density

41 Specialists

Practicing in Williamsburg, VA (3758 Statewide)

Telehealth Adoption Rate

17.1% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

48.0% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Merrill (24 Years) 24 Yrs

Williamsburg Specialty Average (26.5 Years) 26.5 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
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	271	185	$151.20	$78.85
99239 Hospital discharge day management, more than 30 minutes	256	244	$220.90	$114.39
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	171	119	$227.21	$118.89
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	165	160	$332.36	$172.56
99497 Advance care planning, first 30 minutes	44	43	$145.34	$75.72

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99239 Hospital discharge day management, more than 30 minutes	224	218	$224.15	$113.14
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	120	88	$153.33	$77.90
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	92	71	$228.37	$118.17
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	34	34	$368.47	$172.23
99497 Advance care planning, first 30 minutes	25	24	$152.00	$74.95

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	125	81	$147.00	$70.40
99239 Hospital discharge day management, more than 30 minutes	118	115	$216.00	$103.73
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	65	51	$210.00	$102.04
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	36	36	$408.00	$196.94
99497 Advance care planning, first 30 minutes	28	24	$160.00	$77.69
99217 Hospital observation care on day of discharge	25	25	$148.00	$71.45
99220 Hospital observation care, typically 70 minutes	14	14	$374.00	$177.64
99358 Prolonged patient service without direct patient contact first hour	13	12	$226.00	$110.19

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	249	167	$147.00	$71.44
99239 Hospital discharge day management, more than 30 minutes	202	193	$216.00	$105.62
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	175	116	$210.00	$102.58
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	82	82	$408.00	$199.70
99497 Advance care planning, first 30 minutes	61	58	$160.00	$78.31
99217 Hospital observation care on day of discharge	41	40	$148.00	$72.02
99220 Hospital observation care, typically 70 minutes	30	30	$374.00	$181.27
99358 Prolonged patient service without direct patient contact first hour	22	22	$226.00	$111.31
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	16	15	$276.00	$135.59

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	395	228	$147.00	$73.62
99239 Hospital discharge day management, more than 30 minutes	235	216	$216.00	$109.26
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	185	182	$408.00	$204.71
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	105	88	$210.00	$105.72
99497 Advance care planning, first 30 minutes	98	94	$160.00	$80.37
99358 Prolonged patient service without direct patient contact first hour	51	49	$226.00	$112.67
99217 Hospital observation care on day of discharge	44	42	$148.00	$74.17
99220 Hospital observation care, typically 70 minutes	44	44	$374.00	$187.69
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	19	19	$276.00	$140.59
99231 Follow-up hospital inpatient care per day, typically 15 minutes	15	11	$80.00	$40.29
99225 Subsequent observation care, typically 25 minutes per day	15	14	$148.00	$74.31

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	433	407	$403.00	$203.05
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	277	158	$144.00	$73.18
99497 Advance care planning, first 30 minutes	161	152	$170.00	$79.62
99239 Hospital discharge day management, more than 30 minutes	160	151	$214.00	$107.22
99220 Hospital observation care, typically 70 minutes	102	100	$369.00	$186.71
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	54	42	$207.00	$104.60
99217 Hospital observation care on day of discharge	32	32	$145.00	$73.50
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	15	15	$273.00	$137.71
99225 Subsequent observation care, typically 25 minutes per day	11	11	$145.00	$73.53

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	526	255	$144.00	$72.39
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	372	354	$403.00	$200.25
99239 Hospital discharge day management, more than 30 minutes	233	220	$214.00	$106.54
99220 Hospital observation care, typically 70 minutes	89	86	$369.00	$185.38
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	36	32	$207.00	$103.61
99231 Follow-up hospital inpatient care per day, typically 15 minutes	33	21	$89.52	$38.97
99217 Hospital observation care on day of discharge	32	32	$145.00	$71.41
99497 Advance care planning, first 30 minutes	21	21	$170.00	$78.71
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	21	21	$273.00	$136.02

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	518	254	$144.00	$71.23
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	326	312	$403.00	$198.99
99239 Hospital discharge day management, more than 30 minutes	203	191	$214.00	$105.94
99220 Hospital observation care, typically 70 minutes	61	60	$369.00	$183.72
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	36	28	$207.00	$103.16
99231 Follow-up hospital inpatient care per day, typically 15 minutes	25	15	$86.00	$38.78
99217 Hospital observation care on day of discharge	21	21	$145.00	$69.20
99291 Critical care, first 30-74 minutes	13	13	$546.00	$220.81
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	13	13	$273.00	$135.21

Medical Specialties & State Licenses

CMS Verified: 2023-12-04

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License VA 0101248071

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.

Family Medicine

NUCC Taxonomy Code: 207Q00000X

State License OH 35-084589

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

Hospitalist

NUCC Taxonomy Code: 208M00000X

State License VA 0101248071

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

2574174 (OH)

Commercial Insurance / Payer ID Paramount Insurance

04782 (OH)

Commercial Insurance / Payer ID Cigna Insurance

5191153 (OH)

Commercial Insurance / Payer ID Anthem Insurance

000000367441 (OH)

Hospital & Practice Group Affiliations

Sentara Medical Group

100 Sentara Cir, Williamsburg, VA 231885713

Phone: 7579847217

Practice Associates & Co-Workers

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

14 Associated Practitioners

Dr. Troy Thompson , MD

Specialist

NPI 1003803487

Doctor of Medicine (M.D.)

Dr. Ralph Dimattia , MD

Internal Medicine

NPI 1013985068

Doctor of Medicine (M.D.)

Hannah Manson , PA

Physician Assistant

NPI 1083080295

Physician Assistant

Dr. Taylor Hanson , MD

Internal Medicine

NPI 1124683958

Doctor of Medicine (M.D.)

Dr. Imhotep Boukman , MD

Internal Medicine

NPI 1326094723

Doctor of Medicine (M.D.)

Dr. Tsegaye Gebregiorgis , MD

Internal Medicine

NPI 1356731897

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

11 Historical Events

✅

NPI Profile Active January 18, 2017

NPI status registered as active in NPPES database

📍

Updated Practice Location January 18, 2017

Registered at 100 SENTARA CIR, ROOM 2C, WILLIAMSBURG, VA 231885713 (Tel: 7579847218)

📍

Updated Business Mailing Address January 18, 2017

Registered at 100 SENTARA CIR, ROOM 2C, WILLIAMSBURG, VA 231885713 (Tel: 7579847218)

👤

Provider Name / Credentials Updated January 18, 2017

Recorded as LISA MERRILL, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) January 18, 2017

Family Medicine (License #35-084589 in OH)

✅

NPI Profile Active April 20, 2012

NPI status registered as active in NPPES database

📍

Updated Practice Location April 20, 2012

Registered at 100 SENTARA CIR, ROOM 2C, WILLIAMSBURG, VA 231885713 (Tel: 7579847218)

📍

Updated Business Mailing Address April 20, 2012

Registered at 100 SENTARA CIR, ROOM 2C, WILLIAMSBURG, VA 231885713 (Tel: 7579847218)

👤

Provider Name / Credentials Updated April 20, 2012

Recorded as LISA MERRILL, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) April 20, 2012

Family Medicine (License #35-084589 in OH)

🟢

Initial NPI Registration & Enumeration January 26, 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: 1235109653

Entity Type:

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

Enumeration Date: January 26, 2006

Last Update: December 04, 2023

Sole Proprietor: No

Update or Correct Profile

Mailing Address

100 Sentara Cir, Room 2c

Williamsburg, VA 231885713

Phone: 7579847218

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.