Active NPI 1528201134 Individual Practitioner Male Practitioner

Dr. William Randolph Mook , MD

Orthopaedic Surgery • Reston, VA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. William Mook, MD is a certified Orthopaedic Surgery practicing in Reston, VA. With approximately 17 years of clinical experience since graduating from University Of Virginia School Of Medicine in 2009, Dr. Mook delivers high-quality medical care to the local community at 1850 TOWN CENTER PKWY.

Dr. Mook is affiliated with Orthovirginia Inc and accepts Medicare assignment.

Frequently performed procedures and clinical services include injection, triamcinolone acetonide, not otherwise specified, 10 mg, hyaluronan or derivative, durolane, for intra-articular injection, 1 mg, established patient outpatient office visit. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1850 Town Center Pkwy
Ste 400

Reston, VA 201903219

Telephone 7038105202

Fax 7038105420

Associated Practice Facility / Clinic

🏢 Reston Hospital Center Llc Facility NPI 1053363853

Medicare Profile & Education

Medical School

University Of Virginia School Of Medicine

Graduation Year

2009

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Orthopaedic Surgery in Reston, VA

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

17 Yrs -10.6 yrs vs City Avg

City Avg: 27.6 Yrs

State Avg: 26.3 Yrs

Regional Practice Density

13 Specialists

Practicing in Reston, VA (618 Statewide)

Telehealth Adoption Rate

7.7% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

80.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Mook (17 Years) 17 Yrs

Reston Specialty Average (27.6 Years) 27.6 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
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	2,844	218	$2.61	$0.97
J7318 Hyaluronan or derivative, durolane, for intra-articular injection, 1 mg	1,980	19	$23.00	$6.54
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	410	282	$275.06	$140.79
73030 X-ray of shoulder, minimum of 2 views	357	250	$140.19	$38.83
20610 Aspiration and/or injection of fluid from large joint	337	227	$251.32	$78.73
99213 Established patient office or other outpatient visit, typically 15 minutes	326	233	$176.08	$100.05
73564 X-ray of knee, 4 or more views	85	73	$167.41	$53.80
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	60	60	$312.70	$184.62
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	56	56	$228.25	$123.90
23472 Prosthetic repair of shoulder joint, total shoulder	39	39	$7008.00	$1593.07
24301 Relocation of muscle or tendon of upper arm or elbow	33	33	$3604.00	$421.08
73562 X-ray of knee, 3 views	27	25	$125.19	$40.46
29823 Removal of extensive shoulder joint tissue using an endoscope	16	16	$2973.00	$150.52
29826 Shaving of part of shoulder bone and repair of ligament using an endoscope	15	15	$1674.00	$184.86
73630 X-ray of foot, minimum of 3 views	15	12	$113.00	$39.61
73610 X-ray of ankle, minimum of 3 views	14	12	$119.14	$40.92
29827 Repair of shoulder rotator cuff using an endoscope	14	14	$5073.00	$1128.37

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	2,597	212	$2.61	$1.05
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	400	277	$273.00	$141.43
20610 Aspiration and/or injection of fluid from large joint	316	213	$259.51	$81.60
73030 X-ray of shoulder, minimum of 2 views	294	217	$139.00	$39.47
99213 Established patient office or other outpatient visit, typically 15 minutes	235	182	$175.00	$100.97
73564 X-ray of knee, 4 or more views	109	84	$166.00	$54.64
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	62	62	$312.00	$182.61
J7324 Hyaluronan or derivative, orthovisc, for intra-articular injection, per dose	58	18	$236.00	$122.34
23472 Prosthetic repair of shoulder joint, total shoulder	44	43	$7008.00	$1641.81
24301 Relocation of muscle or tendon of upper arm or elbow	38	37	$3604.00	$434.70
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	36	36	$226.00	$127.39
J0702 Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg	25	11	$12.00	$6.52
73562 X-ray of knee, 3 views	23	21	$125.00	$40.46
73502 X-ray of hip, 2-3 views	18	17	$173.00	$52.29
29823 Removal of extensive shoulder joint tissue using an endoscope	17	17	$2973.00	$216.79
73630 X-ray of foot, minimum of 3 views	15	11	$113.00	$36.72
73080 X-ray of elbow, minimum of 3 views	14	12	$125.00	$39.01
29827 Repair of shoulder rotator cuff using an endoscope	14	14	$5073.00	$1222.61
29826 Shaving of part of shoulder bone and repair of ligament using an endoscope	12	12	$1674.00	$192.26
72040 X-ray of upper spine, 2-3 views	11	11	$137.00	$46.21

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	1,944	170	$2.61	$1.14
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	316	226	$269.46	$148.08
73030 X-ray of shoulder, minimum of 2 views	261	160	$139.00	$41.98
20610 Aspiration and/or injection of fluid from large joint	230	171	$252.84	$85.02
99213 Established patient office or other outpatient visit, typically 15 minutes	203	152	$171.41	$105.35
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	78	78	$313.95	$192.80
73564 X-ray of knee, 4 or more views	77	61	$166.00	$57.56
J7324 Hyaluronan or derivative, orthovisc, for intra-articular injection, per dose	41	11	$236.00	$146.17
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	36	36	$224.75	$131.51
73110 X-ray of wrist, minimum of 3 views	31	17	$162.68	$50.74
23472 Prosthetic repair of shoulder joint, total shoulder	28	27	$7008.00	$1706.44
24301 Relocation of muscle or tendon of upper arm or elbow	23	23	$3604.00	$448.65
73080 X-ray of elbow, minimum of 3 views	21	14	$125.00	$37.22
73502 X-ray of hip, 2-3 views	20	18	$171.65	$53.92
72100 X-ray of lower and sacral spine, 2-3 views	15	15	$147.40	$48.12
73130 X-ray of hand, minimum of 3 views	15	12	$114.73	$38.58
29823 Removal of extensive shoulder joint tissue using an endoscope	11	11	$2973.00	$286.88
72040 X-ray of upper spine, 2-3 views	11	11	$135.36	$47.23

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	1,521	122	$2.61	$1.27
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	298	194	$217.00	$148.75
73030 X-ray of shoulder, minimum of 2 views	285	140	$137.75	$40.58
99213 Established patient office or other outpatient visit, typically 15 minutes	180	125	$147.00	$106.79
20610 Aspiration and/or injection of fluid from large joint	174	120	$245.77	$84.47
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	88	88	$331.00	$193.33
73564 X-ray of knee, 4 or more views	82	64	$166.00	$55.97
J7324 Hyaluronan or derivative, orthovisc, for intra-articular injection, per dose	37	11	$235.38	$136.99
73502 X-ray of hip, 2-3 views	27	25	$161.44	$55.46
73110 X-ray of wrist, minimum of 3 views	26	15	$155.92	$47.80
23472 Prosthetic repair of shoulder joint, total shoulder	25	25	$7008.00	$1718.03
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	22	22	$217.00	$131.33
24301 Relocation of muscle or tendon of upper arm or elbow	19	19	$3604.00	$450.14
72040 X-ray of upper spine, 2-3 views	12	12	$128.00	$48.51

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	1,296	101	$2.61	$1.46
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	256	173	$216.72	$124.96
73030 X-ray of shoulder, minimum of 2 views	200	100	$137.00	$38.00
20610 Aspiration and/or injection of fluid from large joint	171	109	$247.88	$82.13
99213 Established patient office or other outpatient visit, typically 15 minutes	149	105	$143.30	$87.30
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	62	62	$317.02	$190.39
73564 X-ray of knee, 4 or more views	59	43	$166.00	$51.00
J7324 Hyaluronan or derivative, orthovisc, for intra-articular injection, per dose	43	11	$221.00	$131.68
73502 X-ray of hip, 2-3 views	34	29	$161.00	$50.85
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	33	33	$210.73	$122.07
23472 Prosthetic repair of shoulder joint, total shoulder	31	29	$7008.00	$1683.87
73110 X-ray of wrist, minimum of 3 views	23	13	$154.00	$46.55
24301 Relocation of muscle or tendon of upper arm or elbow	22	21	$3604.00	$449.57
73080 X-ray of elbow, minimum of 3 views	18	12	$110.00	$36.15
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	12	12	$320.00	$157.14

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	1,344	106	$5.14	$1.59
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	224	157	$206.17	$123.13
73030 X-ray of shoulder, minimum of 2 views	195	104	$102.31	$32.49
20610 Aspiration and/or injection of fluid from large joint	164	116	$290.25	$76.26
99213 Established patient office or other outpatient visit, typically 15 minutes	155	103	$134.45	$84.04
73564 X-ray of knee, 4 or more views	105	80	$134.87	$47.29
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	68	68	$315.78	$184.51
73562 X-ray of knee, 3 views	39	31	$118.85	$36.94
73502 X-ray of hip, 2-3 views	38	33	$146.79	$47.85
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	36	36	$213.56	$124.17
23472 Prosthetic repair of shoulder joint, total shoulder	15	14	$7112.27	$1695.58
24301 Relocation of muscle or tendon of upper arm or elbow	13	12	$3667.38	$439.95
72040 X-ray of upper spine, 2-3 views	11	11	$107.55	$42.39

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	1,040	82	$10.00	$1.79
99213 Established patient office or other outpatient visit, typically 15 minutes	248	149	$118.00	$82.17
73030 X-ray of shoulder, minimum of 2 views	148	91	$90.00	$32.13
20610 Aspiration and/or injection of fluid from large joint	132	90	$392.00	$78.66
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	125	99	$185.00	$119.75
73564 X-ray of knee, 4 or more views	64	52	$125.00	$44.53
J7324 Hyaluronan or derivative, orthovisc, for intra-articular injection, per dose	38	11	$320.00	$143.76
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	33	33	$216.00	$122.70
73502 X-ray of hip, 2-3 views	28	24	$146.00	$39.72
73562 X-ray of knee, 3 views	22	18	$95.00	$38.13
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	22	22	$305.00	$185.27
29823 Removal of extensive shoulder joint tissue using an endoscope	13	13	$3225.00	$253.05
23472 Prosthetic repair of shoulder joint, total shoulder	11	11	$7399.00	$1676.41

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	672	58	$10.00	$1.80
99213 Established patient office or other outpatient visit, typically 15 minutes	217	122	$118.00	$81.36
73030 X-ray of shoulder, minimum of 2 views	114	58	$90.00	$31.80
20610 Aspiration and/or injection of fluid from large joint	95	61	$346.91	$72.79
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	45	45	$216.00	$120.44
73562 X-ray of knee, 3 views	42	33	$95.00	$38.65
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	41	33	$185.00	$118.50
73502 X-ray of hip, 2-3 views	22	18	$146.00	$46.96

Medical Specialties & State Licenses

CMS Verified: 2020-10-28

Orthopaedic Surgery Primary Specialty

NUCC Taxonomy Code: 207X00000X

State License VA 0101258773

An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.

Orthopaedic Surgery - Sports Medicine

NUCC Taxonomy Code: 207XX0005X

State License CO 53419

An orthopaedic surgeon trained in sports medicine provides appropriate care for all structures of the musculoskeletal system directly affected by participation in sporting activity. This specialist is proficient in areas including conditioning, training and fitness, athletic performance and the impact of dietary supplements, pharmaceuticals, and nutrition on performance and health, coordination of care within the team setting utilizing other health care professionals, field evaluation and management, soft tissue biomechanics and injury healing and repair. Knowledge and understanding of the principles and techniques of rehabilitation, athletic equipment and orthotic devices enables the specialist to prevent and manage athletic injuries.

Hospital & Practice Group Affiliations

Orthovirginia Inc

1850 Town Ctr Pkwy, Reston, VA 201903300

Phone: 7038105202

Practice Associates & Co-Workers

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

22 Associated Practitioners

Dr. Vignesh Alamanda , MD

Orthopaedic Surgery - Adult Reconstructive Orthopaedic Surgery

NPI 1043620628

Doctor of Medicine (M.D.)

Erik Larsen , PA

Physician Assistant

NPI 1053332890

Physician Assistant

Britt Klick , PA

Physician Assistant - Medical

NPI 1073530135

Physician Assistant

Dr. Behrang Mazahery , MD

Orthopaedic Surgery

NPI 1225051295

Doctor of Medicine (M.D.)

Jillian Hobbs , PA-C

Physician Assistant

NPI 1285061465

Physician Assistant (Certified)

Dr. Mark Hartley , MD

Orthopaedic Surgery

NPI 1285655035

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 August 26, 2015

NPI status registered as active in NPPES database

📍

Updated Practice Location August 26, 2015

Registered at 1850 TOWN CENTER PKWY, STE 400, RESTON, VA 201903219 (Tel: 7038105202)

📍

Updated Business Mailing Address August 26, 2015

Registered at PO BOX 75420, BALTIMORE, MD 212755420 (Tel: 7033836469)

👤

Provider Name / Credentials Updated August 26, 2015

Recorded as WILLIAM MOOK, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) August 26, 2015

Orthopaedic Surgery (License #0101258773 in VA)

🟢

Initial NPI Registration & Enumeration April 13, 2009

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: 1528201134

Entity Type:

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

Enumeration Date: April 13, 2009

Last Update: October 28, 2020

Sole Proprietor: No

Update or Correct Profile

Mailing Address

Po Box 75420

Baltimore, MD 212755420

Phone: 7033836469

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.