Active NPI 1285631994 Individual Practitioner Male Practitioner

Dr. Lionel Williams , MD

Anesthesiology • Poughkeepsie, NY

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Lionel Williams, MD is a certified Anesthesiology practicing in Poughkeepsie, NY. With approximately 38 years of clinical experience since graduating from State University Of New York At Buffalo School Of Medicine in 1988, Dr. Williams delivers high-quality medical care to the local community at 45 READE PL.

Dr. Williams is affiliated with North American Partners In Anesthesia Llp and accepts Medicare assignment.

Frequently performed procedures and clinical services include anesthesia for x-ray or radiation therapy, anesthesia for insertion of permanent heart pacemaker, anesthesia for procedure to assess heart electrical activity. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

45 Reade Pl
Anesthesia Department

Poughkeepsie, NY 126013947

Telephone 8454315629

Associated Practice Facility / Clinic

🏢 Health Quest Facility NPI 1295794162

Medicare Profile & Education

Medical School

State University Of New York At Buffalo School Of Medicine

Graduation Year

1988

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Anesthesiology in Poughkeepsie, NY

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

38 Yrs +13.5 yrs vs City Avg

City Avg: 24.5 Yrs

State Avg: 27.4 Yrs

Regional Practice Density

59 Specialists

Practicing in Poughkeepsie, NY (5244 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

95.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Williams (38 Years) 38 Yrs

Poughkeepsie Specialty Average (24.5 Years) 24.5 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
01922 Anesthesia for x-ray or radiation therapy	73	72	$2418.18	$99.24
00530 Anesthesia for insertion of permanent heart pacemaker	66	66	$3106.20	$130.24
00537 Anesthesia for procedure to assess heart electrical activity	53	53	$5853.79	$247.13
36620 Insertion of artery tube for blood sampling or infusion through skin	53	53	$1214.58	$45.09
00410 Anesthesia for procedure to correct abnormal heart rhythm	39	37	$1403.02	$55.86
00560 Anesthesia for procedure on heart and large blood vessels	39	39	$9605.06	$438.96
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older)	25	25	$1663.83	$86.94
93313 Insertion of probe in esophagus for heart ultrasound	22	22	$806.21	$11.42
00731 Anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope	19	19	$1918.72	$78.48
01926 Anesthesia for x-ray on artery of brain, heart, or chest	19	19	$5657.30	$219.30
76937 Ultrasonic guidance for blood vessel access	18	17	$415.97	$14.23
00567 Anesthesia for heart artery bypass grafting on heart-lung machine	16	16	$17792.67	$816.23
00562 Anesthesia for procedure on heart and large blood vessels using heart-lung machine (1 year or older)	16	16	$17037.95	$784.73
00840 Anesthesia for procedure in lower abdominal cavity including use of an endoscope	14	14	$5085.23	$221.94
00790 Anesthesia for procedure in upper abdomen including use of an endoscope	13	13	$8404.09	$376.28

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
00731 Anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope	145	139	$1801.84	$81.59
01922 Anesthesia for x-ray or radiation therapy	69	65	$2539.17	$116.05
00530 Anesthesia for insertion of permanent heart pacemaker	67	67	$2661.55	$122.03
00537 Anesthesia for procedure to assess heart electrical activity	64	64	$5013.14	$249.19
00811 Anesthesia for procedure on large bowel using an endoscope	62	61	$1599.04	$73.10
36620 Insertion of artery tube for blood sampling or infusion through skin	54	52	$1188.59	$47.14
00560 Anesthesia for procedure on heart and large blood vessels	44	44	$9475.61	$464.13
00813 Anesthesia for procedure on small and large bowel using an endoscope	33	33	$1942.21	$87.88
01926 Anesthesia for x-ray on artery of brain, heart, or chest	25	25	$5107.94	$234.33
00840 Anesthesia for procedure in lower abdominal cavity including use of an endoscope	24	24	$5289.73	$254.65
00410 Anesthesia for procedure to correct abnormal heart rhythm	22	21	$1461.39	$68.37
00812 Anesthesia for exam of colon using an endoscope	21	21	$1327.68	$55.09
00520 Anesthesia for closed procedure in chest	18	17	$3718.00	$177.18
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older)	17	17	$1599.43	$89.94
00732 Anesthesia for procedure on gallbladder, pancreas, or liver using an endoscope	17	17	$2844.97	$128.19
00562 Anesthesia for procedure on heart and large blood vessels using heart-lung machine (1 year or older)	16	16	$12490.14	$621.88
00567 Anesthesia for heart artery bypass grafting on heart-lung machine	16	16	$17902.60	$902.38

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
00731 Anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope	112	108	$1641.58	$84.57
01922 Anesthesia for x-ray or radiation therapy	70	69	$2243.05	$116.45
00537 Anesthesia for procedure to assess heart electrical activity	65	65	$5256.23	$295.04
36620 Insertion of artery tube for blood sampling or infusion through skin	50	50	$1153.76	$47.89
00530 Anesthesia for insertion of permanent heart pacemaker	49	49	$2539.87	$130.40
00811 Anesthesia for procedure on large bowel using an endoscope	47	47	$1650.38	$85.59
00410 Anesthesia for procedure to correct abnormal heart rhythm	38	36	$1214.46	$63.06
00813 Anesthesia for procedure on small and large bowel using an endoscope	31	31	$1708.57	$86.45
00534 Anesthesia for insertion or replace of pacing heart defibrillator	25	25	$3349.45	$168.97
00560 Anesthesia for procedure on heart and large blood vessels	21	21	$6590.54	$344.83
00732 Anesthesia for procedure on gallbladder, pancreas, or liver using an endoscope	18	16	$2680.87	$138.73
00812 Anesthesia for exam of colon using an endoscope	16	16	$1228.07	$63.84
00400 Anesthesia for procedure on skin of arms, legs, or trunk	16	16	$1862.86	$95.07
00790 Anesthesia for procedure in upper abdomen including use of an endoscope	15	15	$5702.00	$301.35
76937 Ultrasonic guidance for blood vessel access	14	14	$384.59	$14.73
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older)	12	12	$1538.34	$93.04
01926 Anesthesia for x-ray on artery of brain, heart, or chest	12	12	$4212.08	$218.67

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
00731 Anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope	105	99	$1749.55	$92.03
36620 Insertion of artery tube for blood sampling or infusion through skin	93	92	$1138.31	$48.72
00560 Anesthesia for procedure on heart and large blood vessels	69	68	$6834.34	$375.07
00537 Anesthesia for procedure to assess heart electrical activity	55	55	$5045.65	$260.53
01922 Anesthesia for x-ray or radiation therapy	55	55	$2103.46	$109.14
00530 Anesthesia for insertion of permanent heart pacemaker	50	50	$2501.86	$130.41
00811 Anesthesia for procedure on large bowel using an endoscope	46	44	$1567.24	$82.21
00410 Anesthesia for procedure to correct abnormal heart rhythm	37	36	$1186.92	$61.98
00813 Anesthesia for procedure on small and large bowel using an endoscope	33	32	$1859.81	$96.93
01926 Anesthesia for x-ray on artery of brain, heart, or chest	27	27	$3758.87	$195.82
76937 Ultrasonic guidance for blood vessel access	23	23	$379.86	$14.98
00732 Anesthesia for procedure on gallbladder, pancreas, or liver using an endoscope	22	22	$2667.53	$140.48
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older)	21	20	$1517.61	$94.05
00790 Anesthesia for procedure in upper abdomen including use of an endoscope	18	16	$5220.74	$261.55
93312 Ultrasound of heart with probe in esophagus, with report	17	17	$2283.13	$116.12
93503 Insertion of tube in pulmonary artery for monitoring	15	15	$3815.49	$96.09
00840 Anesthesia for procedure in lower abdominal cavity including use of an endoscope	14	14	$4427.99	$240.25
00534 Anesthesia for insertion or replace of pacing heart defibrillator	12	12	$3019.19	$157.41
93320 Ultrasound of heart blood flow, valves and chambers	11	11	$1135.95	$19.20

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36620 Insertion of artery tube for blood sampling or infusion through skin	96	94	$1088.45	$49.32
00560 Anesthesia for procedure on heart and large blood vessels	49	48	$8881.35	$551.36
76937 Ultrasonic guidance for blood vessel access	43	43	$362.82	$15.77
00731 Anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope	38	37	$1805.86	$105.85
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older)	33	32	$1451.26	$96.18
01922 Anesthesia for x-ray or radiation therapy	32	31	$2715.46	$164.81
93503 Insertion of tube in pulmonary artery for monitoring	27	27	$3626.89	$98.51
93312 Ultrasound of heart with probe in esophagus, with report	24	24	$2175.63	$119.28
00790 Anesthesia for procedure in upper abdomen including use of an endoscope	23	22	$5787.36	$344.76
01926 Anesthesia for x-ray on artery of brain, heart, or chest	21	21	$4690.95	$282.30
00530 Anesthesia for insertion of permanent heart pacemaker	17	17	$3072.05	$181.62
00811 Anesthesia for procedure on large bowel using an endoscope	14	14	$1460.88	$82.16
00910 Anesthesia for other procedure on urinary system through urethra	14	14	$1682.12	$106.19
01922 Anesthesia for x-ray or radiation therapy	14	14	$3004.80	$176.63
00567 Anesthesia for heart artery bypass grafting on heart-lung machine	13	13	$18414.35	$1141.65
00400 Anesthesia for procedure on skin of arms, legs, or trunk	12	12	$2132.33	$126.51
93320 Ultrasound of heart blood flow, valves and chambers	12	12	$1088.45	$19.84

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36620 Insertion of artery tube for blood sampling or infusion through skin	98	93	$1046.91	$48.05
01922 Anesthesia for x-ray or radiation therapy	66	65	$3009.33	$180.96
76937 Ultrasonic guidance for blood vessel access	48	46	$347.85	$15.38
01922 Anesthesia for x-ray or radiation therapy	40	40	$2502.80	$154.91
93503 Insertion of tube in pulmonary artery for monitoring	35	35	$3455.90	$95.81
00560 Anesthesia for procedure on heart and large blood vessels	24	23	$7861.17	$496.33
93313 Insertion of probe in esophagus for heart ultrasound	22	22	$671.21	$12.38
93312 Ultrasound of heart with probe in esophagus, with report	20	19	$2127.76	$116.10
00530 Anesthesia for insertion of permanent heart pacemaker	19	19	$2576.51	$155.87
00731 Anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope	17	17	$2081.51	$129.19
00410 Anesthesia for procedure to correct abnormal heart rhythm	16	15	$1524.37	$96.68
00567 Anesthesia for heart artery bypass grafting on heart-lung machine	16	16	$15565.01	$965.24
00566 Anesthesia for heart artery bypass grafting	16	16	$15956.86	$1036.19
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older)	16	15	$1401.37	$92.71
00562 Anesthesia for procedure on heart and large blood vessels using heart-lung machine (1 year or older)	13	12	$17507.11	$1127.16
00910 Anesthesia for other procedure on urinary system through urethra	12	12	$1623.13	$102.81
00840 Anesthesia for procedure in lower abdominal cavity including use of an endoscope	12	12	$4420.63	$274.62
01926 Anesthesia for x-ray on artery of brain, heart, or chest	11	11	$4931.13	$304.33

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36620 Insertion of artery tube for blood sampling or infusion through skin	110	110	$946.30	$46.49
76937 Ultrasonic guidance for blood vessel access	64	64	$315.11	$15.13
01922 Anesthesia for x-ray or radiation therapy	57	54	$2856.59	$177.14
93503 Insertion of tube in pulmonary artery for monitoring	52	52	$3131.98	$110.97
01922 Anesthesia for x-ray or radiation therapy	49	48	$2142.79	$137.26
00731 Anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope	37	35	$1599.77	$100.58
93313 Insertion of probe in esophagus for heart ultrasound	31	31	$643.92	$12.18
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older)	22	22	$1264.93	$105.26
00562 Anesthesia for procedure on heart and large blood vessels using heart-lung machine (1 year or older)	21	21	$14841.23	$1001.87
00811 Anesthesia for procedure on large bowel using an endoscope	20	20	$1278.78	$80.46
93312 Ultrasound of heart with probe in esophagus, with report	18	18	$1818.95	$114.25
00530 Anesthesia for insertion of permanent heart pacemaker	18	18	$2733.66	$178.73
00560 Anesthesia for procedure on heart and large blood vessels	18	18	$7508.18	$498.89
00567 Anesthesia for heart artery bypass grafting on heart-lung machine	18	18	$15755.43	$1056.92
00566 Anesthesia for heart artery bypass grafting	17	17	$15797.90	$1049.50
00790 Anesthesia for procedure in upper abdomen including use of an endoscope	15	14	$4703.12	$299.75
01926 Anesthesia for x-ray on artery of brain, heart, or chest	13	13	$5006.77	$329.58

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36620 Insertion of artery tube for blood sampling or infusion through skin	78	77	$880.65	$54.41
76937 Ultrasonic guidance for blood vessel access	39	39	$293.55	$15.12
01922 Anesthesia for x-ray or radiation therapy	38	37	$2647.46	$170.70
93503 Insertion of tube in pulmonary artery for monitoring	38	38	$2934.47	$136.52
00740 Anesthesia for procedure on gastrointestinal tract using an endoscope	27	27	$2328.64	$161.32
01922 Anesthesia for x-ray or radiation therapy	25	25	$2748.99	$189.47
93312 Ultrasound of heart with probe in esophagus, with report	25	25	$1760.27	$113.99
00567 Anesthesia for heart artery bypass grafting on heart-lung machine	21	21	$15093.38	$1061.51
01926 Anesthesia for x-ray on artery of brain, heart, or chest	19	19	$5771.87	$403.96
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older)	17	17	$1174.20	$129.88
93313 Insertion of probe in esophagus for heart ultrasound	17	17	$587.10	$12.18
00562 Anesthesia for procedure on heart and large blood vessels using heart-lung machine (1 year or older)	17	17	$14772.98	$1051.80
00790 Anesthesia for procedure in upper abdomen including use of an endoscope	15	15	$6562.22	$459.12
01916 Anesthesia for diagnostic x-ray procedure on arteries or veins	13	13	$2350.43	$161.73

Medical Specialties & State Licenses

Anesthesiology Primary Specialty

NUCC Taxonomy Code: 207L00000X

State License NY 180410

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

01901660 (NY)

Hospital & Practice Group Affiliations

North American Partners In Anesthesia Llp

45 Reade Pl, Poughkeepsie, NY 126013947

Phone: 8454548500

Practice Associates & Co-Workers

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

36 Associated Practitioners

Dr. Mylar Rao , MD

Anesthesiology

NPI 1083612584

Doctor of Medicine (M.D.)

Dr. Iriney Gutnikevich , MD

Anesthesiology

NPI 1083679195

Doctor of Medicine (M.D.)

Jillian Smith , CRNA

Nurse Anesthetist, Certified Registered

NPI 1093752065

Certified Registered Nurse Anesthetist

Nick Schewtschenko , CRNA

Nurse Anesthetist, Certified Registered

NPI 1114924214

Certified Registered Nurse Anesthetist

Dr. John Mascia , MD

Anesthesiology

NPI 1124025200

Doctor of Medicine (M.D.)

Dr. Robert Impastato , MD

Anesthesiology

NPI 1144227224

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 November 04, 2009

NPI status registered as active in NPPES database

📍

Updated Practice Location November 04, 2009

Registered at 45 READE PL, ANESTHESIA DEPARTMENT, POUGHKEEPSIE, NY 126013947 (Tel: 8454315629)

📍

Updated Business Mailing Address November 04, 2009

Registered at 68 S SERVICE RD, SUITE 350, MELVILLE, NY 117472354 (Tel: 5169453000)

👤

Provider Name / Credentials Updated November 04, 2009

Recorded as LIONEL WILLIAMS, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) November 04, 2009

Anesthesiology (License #180410 in NY)

🟢

Initial NPI Registration & Enumeration July 07, 2005

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1285631994

Entity Type:

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

Enumeration Date: July 07, 2005

Last Update: November 04, 2009

Sole Proprietor: No

Update or Correct Profile

Mailing Address

68 S Service Rd, Suite 350

Melville, NY 117472354

Phone: 5169453000

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.