Active NPI 1265485155 Individual Practitioner Male Practitioner

Dr. Christopher P. Ames , MD

Neurological Surgery • San Francisco, CA

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Christopher Ames, MD is a certified Neurological Surgery practicing in San Francisco, CA. With approximately 32 years of clinical experience since graduating from University Of California, Geffen School Of Medicine in 1994, Dr. Ames delivers high-quality medical care to the local community at 400 PARNASSUS AVE.

Dr. Ames is affiliated with Ucsf Medical Group Business Services and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include fusion of additional segment of spine, insertion of instrumentation to pelvic bones, insertion of cage or mesh device to spine bone and disc space during spine fusion. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

400 Parnassus Ave

San Francisco, CA 941432202

Telephone 4153532739

Fax 4153532176

Associated Practice Facility / Clinic

🏢 University Of California San Francisco Facility NPI 1164512851

Medicare Profile & Education

Medical School

University Of California, Geffen School Of Medicine

Graduation Year

1994

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Neurological Surgery in San Francisco, CA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

32 Yrs +14.1 yrs vs City Avg

City Avg: 17.9 Yrs

State Avg: 26.2 Yrs

Regional Practice Density

80 Specialists

Practicing in San Francisco, CA (999 Statewide)

Telehealth Adoption Rate

50.0% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

85.3% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Ames (32 Years) 32 Yrs

San Francisco Specialty Average (17.9 Years) 17.9 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
22614 Fusion of additional segment of spine	834	85	$2019.00	$302.17
22848 Insertion of instrumentation to pelvic bones	67	67	$1875.92	$325.77
22853 Insertion of cage or mesh device to spine bone and disc space during spine fusion	66	45	$1320.60	$261.74
22612 Fusion of spine in lower back	61	61	$8450.00	$1077.45
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	60	60	$1085.00	$202.50
99213 Established patient office or other outpatient visit, typically 15 minutes	45	45	$393.00	$73.56
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	40	37	$773.00	$162.07
22844 Placement of stabilizing device to back, 13 or more spine bone segments	38	38	$5342.91	$920.25
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	38	37	$577.00	$108.75
22843 Placement of stabilizing device to back, 7-12 spine bone segments	38	37	$4168.21	$699.37
63048 Partial removal of spine bone with release of spinal cord and/or nerves	26	14	$1112.58	$178.10
22558 Fusion of spine bones with removal of disc at lower spinal column, anterior approach	24	24	$8423.25	$1026.47
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	24	24	$867.00	$148.22
22633 Fusion of spine in lower back with partial removal of spine bone and disc	21	21	$9754.00	$1501.21
22207 Extensive incision of spinal column (3-column osteotomy) in 1 vertebral segment of lower back (lumbar spine) to correct deformity	21	21	$12671.43	$1821.80
22585 Fusion of spine bones through front of body with partial removal of disc, each additional disc	19	16	$1718.00	$211.93
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	18	18	$575.00	$87.02
61783 Computer-assisted spinal procedure	12	12	$1216.00	$237.89
22600 Fusion of spine in neck by posterior approach	12	12	$7014.33	$819.27

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
22614 Fusion of additional segment of spine	838	97	$2019.00	$278.41
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	87	87	$867.00	$149.70
99213 Established patient office or other outpatient visit, typically 15 minutes	69	65	$393.00	$74.38
22848 Insertion of instrumentation to pelvic bones	65	64	$1874.95	$313.90
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	63	63	$577.00	$110.05
22612 Fusion of spine in lower back	54	53	$8450.00	$952.79
22843 Placement of stabilizing device to back, 7-12 spine bone segments	48	48	$4169.17	$727.35
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	44	44	$575.00	$92.38
22853 Insertion of cage or mesh device to spine bone and disc space during spine fusion	34	31	$1320.61	$266.13
22844 Placement of stabilizing device to back, 13 or more spine bone segments	33	32	$5147.92	$810.77
22633 Fusion of spine in lower back with partial removal of spine bone and disc	23	23	$9754.00	$1445.70
61783 Computer-assisted spinal procedure	21	21	$1216.00	$241.86
22207 Extensive incision of spinal column (3-column osteotomy) in 1 vertebral segment of lower back (lumbar spine) to correct deformity	20	20	$12024.00	$1697.44
22600 Fusion of spine in neck by posterior approach	18	18	$6931.00	$664.48
22842 Placement of stabilizing device to back, 3-6 spine bone segments	15	15	$3940.00	$806.63
22206 Incision or removal of segment of middle spine bone to correct deformity	14	14	$12845.00	$1614.65
63047 Partial removal of middle spine bone with release of spinal cord and/or nerves	13	13	$5913.00	$597.69

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
22614 Fusion of additional segment of spine	1,029	115	$2019.00	$276.14
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	81	81	$867.00	$148.63
22848 Insertion of instrumentation to pelvic bones	74	74	$1876.46	$333.23
22853 Insertion of cage or mesh device to spine bone and disc space during spine fusion	61	50	$1320.78	$263.11
22612 Fusion of spine in lower back	59	58	$8450.00	$976.46
22843 Placement of stabilizing device to back, 7-12 spine bone segments	53	52	$4167.54	$679.96
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	52	52	$577.00	$110.20
22844 Placement of stabilizing device to back, 13 or more spine bone segments	47	47	$5148.82	$822.71
99213 Established patient office or other outpatient visit, typically 15 minutes	38	36	$393.00	$74.76
63048 Partial removal of spine bone with release of spinal cord and/or nerves	37	18	$1080.00	$166.03
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	37	37	$575.00	$92.29
22633 Fusion of spine in lower back with partial removal of spine bone and disc	34	34	$9754.00	$1399.58
22600 Fusion of spine in neck by posterior approach	27	27	$6931.00	$749.22
63047 Partial removal of middle spine bone with release of spinal cord and/or nerves	21	21	$5913.00	$565.90
22842 Placement of stabilizing device to back, 3-6 spine bone segments	21	21	$3940.00	$800.82
61783 Computer-assisted spinal procedure	20	20	$1216.00	$241.81
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	17	17	$773.00	$163.40
22207 Extensive incision of spinal column (3-column osteotomy) in 1 vertebral segment of lower back (lumbar spine) to correct deformity	15	15	$12024.00	$1635.03
22206 Incision or removal of segment of middle spine bone to correct deformity	14	14	$12845.00	$1541.08
22558 Fusion of spine bones with removal of disc at lower spinal column, anterior approach	14	14	$8112.00	$936.03
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	12	12	$1085.00	$205.53

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
22614 Fusion of additional segment of spine	741	74	$1975.67	$273.86
22216 Incision or removal of spine bone segment, each additional segment	89	18	$1869.06	$247.20
22853 Insertion of cage or mesh device to spine bone and disc space during spine fusion	71	48	$1269.00	$277.68
63048 Partial removal of spine bone with release of spinal cord and/or nerves	51	14	$1035.59	$145.15
22612 Fusion of spine in lower back	49	45	$8051.00	$1019.35
22848 Insertion of instrumentation to pelvic bones	47	47	$1785.10	$357.48
22843 Placement of stabilizing device to back, 7-12 spine bone segments	43	40	$4073.44	$675.87
22844 Placement of stabilizing device to back, 13 or more spine bone segments	36	36	$5036.90	$971.47
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	32	32	$867.00	$153.91
22558 Fusion of spine bones with removal of disc at lower spinal column, anterior approach	25	25	$7865.52	$1050.05
22600 Fusion of spine in neck by posterior approach	20	20	$6716.05	$658.67
61783 Computer-assisted spinal procedure	18	18	$1124.00	$247.14
22633 Fusion of spine in lower back with partial removal of spine bone and disc	18	18	$9626.33	$1181.03
99213 Established patient office or other outpatient visit, typically 15 minutes	17	17	$393.00	$76.48
22585 Fusion of spine bones through front of body with partial removal of disc, each additional disc	16	14	$1613.00	$220.77
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	14	14	$577.00	$113.27
22214 Incision of spine to correct deformity at lower spinal column	14	14	$7687.00	$536.61
22206 Incision or removal of segment of middle spine bone to correct deformity	13	13	$12537.00	$1591.03
22207 Extensive incision of spinal column (3-column osteotomy) in 1 vertebral segment of lower back (lumbar spine) to correct deformity	13	13	$12077.00	$1542.51
63047 Partial removal of middle spine bone with release of spinal cord and/or nerves	13	13	$5666.91	$477.99

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
22614 Fusion of additional segment of spine	522	69	$1919.48	$289.59
22853 Insertion of cage or mesh device to spine bone and disc space during spine fusion	63	36	$1259.86	$275.59
22848 Insertion of instrumentation to pelvic bones	56	56	$1782.40	$352.44
22216 Incision or removal of spine bone segment, each additional segment	55	13	$1797.35	$254.93
22612 Fusion of spine in lower back	52	51	$8037.77	$1019.12
22843 Placement of stabilizing device to back, 7-12 spine bone segments	45	43	$4000.25	$727.90
22558 Fusion of spine bones with removal of disc at lower spinal column, anterior approach	29	29	$7742.76	$1050.84
22585 Fusion of spine bones through front of body with partial removal of disc, each additional disc	25	23	$1611.68	$222.38
22842 Placement of stabilizing device to back, 3-6 spine bone segments	20	19	$3743.83	$805.20
22844 Placement of stabilizing device to back, 13 or more spine bone segments	19	19	$4882.97	$950.97
99202 New patient office or other outpatient visit, typically 20 minutes	19	19	$406.00	$56.17
22207 Extensive incision of spinal column (3-column osteotomy) in 1 vertebral segment of lower back (lumbar spine) to correct deformity	18	18	$12059.33	$1693.19
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	17	17	$575.00	$86.50
99213 Established patient office or other outpatient visit, typically 15 minutes	14	14	$393.00	$58.31
22600 Fusion of spine in neck by posterior approach	13	12	$6519.77	$786.57
63047 Partial removal of middle spine bone with release of spinal cord and/or nerves	13	13	$5582.85	$464.22
22214 Incision of spine to correct deformity at lower spinal column	13	13	$7666.69	$563.89
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	11	11	$577.00	$84.90

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
22614 Fusion of additional segment of spine	898	108	$1915.00	$277.11
22853 Insertion of cage or mesh device to spine bone and disc space during spine fusion	98	52	$1244.75	$271.64
22216 Incision or removal of spine bone segment, each additional segment	84	19	$1795.00	$251.58
22612 Fusion of spine in lower back	84	83	$8008.00	$1056.22
22848 Insertion of instrumentation to pelvic bones	70	70	$1778.44	$322.12
22843 Placement of stabilizing device to back, 7-12 spine bone segments	53	52	$3992.67	$658.41
22585 Fusion of spine bones through front of body with partial removal of disc, each additional disc	46	35	$1610.00	$222.33
22558 Fusion of spine bones with removal of disc at lower spinal column, anterior approach	43	43	$7729.00	$1039.71
22844 Placement of stabilizing device to back, 13 or more spine bone segments	29	29	$4876.58	$923.75
22207 Extensive incision of spinal column (3-column osteotomy) in 1 vertebral segment of lower back (lumbar spine) to correct deformity	24	24	$12024.00	$1664.62
99202 New patient office or other outpatient visit, typically 20 minutes	19	19	$406.00	$57.11
22214 Incision of spine to correct deformity at lower spinal column	17	17	$7599.00	$546.21
63047 Partial removal of middle spine bone with release of spinal cord and/or nerves	15	15	$5564.00	$431.10
22600 Fusion of spine in neck by posterior approach	14	14	$6495.00	$636.29
99213 Established patient office or other outpatient visit, typically 15 minutes	14	14	$393.00	$57.55
22842 Placement of stabilizing device to back, 3-6 spine bone segments	13	13	$3735.12	$773.83
22633 Fusion of spine in lower back with partial removal of spine bone and disc	11	11	$9256.00	$1245.18

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
22614 Fusion of additional segment of spine	590	77	$1923.15	$265.68
22216 Incision or removal of spine bone segment, each additional segment	182	40	$1800.93	$245.25
22612 Fusion of spine in lower back	70	69	$7972.17	$983.26
22853 Insertion of cage or mesh device to spine bone and disc space during spine fusion	69	39	$1180.88	$262.24
22848 Insertion of instrumentation to pelvic bones	61	61	$1786.82	$319.90
22843 Placement of stabilizing device to back, 7-12 spine bone segments	47	47	$4002.19	$687.73
22214 Incision of spine to correct deformity at lower spinal column	41	41	$7221.44	$519.28
22558 Fusion of spine bones with removal of disc at lower spinal column, anterior approach	35	35	$7703.29	$1059.43
22585 Fusion of spine bones through front of body with partial removal of disc, each additional disc	26	20	$1634.19	$225.14
22207 Extensive incision of spinal column (3-column osteotomy) in 1 vertebral segment of lower back (lumbar spine) to correct deformity	19	19	$11316.53	$1616.66
22844 Placement of stabilizing device to back, 13 or more spine bone segments	17	17	$4898.10	$909.80
99213 Established patient office or other outpatient visit, typically 15 minutes	14	14	$384.43	$56.01

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
22614 Fusion of additional segment of spine	685	87	$1795.66	$274.67
22216 Incision or removal of spine bone segment, each additional segment	110	26	$1704.18	$254.55
22853 Insertion of cage or mesh device to spine bone and disc space during spine fusion	68	35	$1137.67	$262.39
22612 Fusion of spine in lower back	62	59	$7535.02	$918.93
22848 Insertion of instrumentation to pelvic bones	53	51	$1667.68	$347.12
99213 Established patient office or other outpatient visit, typically 15 minutes	44	39	$354.77	$57.32
22214 Incision of spine to correct deformity at lower spinal column	38	38	$6871.61	$541.28
22843 Placement of stabilizing device to back, 7-12 spine bone segments	38	37	$3762.09	$765.34
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	28	28	$524.00	$85.42
22585 Fusion of spine bones through front of body with partial removal of disc, each additional disc	27	19	$1547.96	$222.72
22558 Fusion of spine bones with removal of disc at lower spinal column, anterior approach	26	26	$7356.46	$918.23
22844 Placement of stabilizing device to back, 13 or more spine bone segments	26	25	$4508.30	$931.04
22600 Fusion of spine in neck by posterior approach	18	18	$5909.83	$764.17
22207 Extensive incision of spinal column (3-column osteotomy) in 1 vertebral segment of lower back (lumbar spine) to correct deformity	17	17	$10879.65	$1660.79
22842 Placement of stabilizing device to back, 3-6 spine bone segments	14	14	$3537.14	$804.44
22633 Fusion of spine in lower back with partial removal of spine bone and disc	14	14	$8835.00	$1343.72
99202 New patient office or other outpatient visit, typically 20 minutes	11	11	$367.55	$56.77

Medical Specialties & State Licenses

Neurological Surgery Primary Specialty

NUCC Taxonomy Code: 207T00000X

State License CA A60247

A neurological surgeon provides the operative and non-operative management (i.e., prevention, diagnosis, evaluation, treatment, critical care, and rehabilitation) of disorders of the central, peripheral, and autonomic nervous systems, including their supporting structures and vascular supply; the evaluation and treatment of pathological processes which modify function or activity of the nervous system; and the operative and non-operative management of pain. A neurological surgeon treats patients with disorders of the nervous system; disorders of the brain, meninges, skull, and their blood supply, including the extracranial carotid and vertebral arteries; disorders of the pituitary gland; disorders of the spinal cord, meninges, and vertebral column, including those which may require treatment by spinal fusion or instrumentation; and disorders of the cranial and spinal nerves throughout their distribution.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

00A602470 (CA)

Hospital & Practice Group Affiliations

Ucsf Medical Group Business Services

505 Parnassus Ave, San Francisco, CA 941432204

Phone: 4154721000

Ucsf Medical Group Business Services

400 Parnassus Ave, San Francisco, CA 941432202

Ucsf Medical Group Business Services

521 Parnassus Ave, San Francisco, CA 941432204

Phone: 4154761000

Ucsf Medical Group Business Services

505 Parnassus Ave, San Francisco, CA 941432204

Phone: 4154761000

Practice Associates & Co-Workers

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

29 Associated Practitioners

Tiffany Ross , PA-C

Physician Assistant

NPI 1003159526

Physician Assistant (Certified)

Dr. David Bradford , MD

Orthopaedic Surgery

NPI 1003853193

Doctor of Medicine (M.D.)

Abegail Balotro , NURSE PRACTITIONER

Nurse Practitioner - Acute Care

NPI 1073325817

NURSEPRACTITIONER

Dr. Niall Buckley , MD

Neurological Surgery

NPI 1215433750

Doctor of Medicine (M.D.)

Dr. John Burke , MD

Neurological Surgery

NPI 1235519935

Doctor of Medicine (M.D.)

Dr. Nancy Lewis , MD

Pediatrics

NPI 1245272368

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 09, 2007

NPI status registered as active in NPPES database

📍

Updated Practice Location July 09, 2007

Registered at 400 PARNASSUS AVE, SAN FRANCISCO, CA 941432202 (Tel: 4153532739)

📍

Updated Business Mailing Address July 09, 2007

Registered at 1635 DIVISADERO STREET, SUITE 625, BOX 1821, SAN FRANCISCO, CA 941430001 (Tel: 4154764029)

👤

Provider Name / Credentials Updated July 09, 2007

Recorded as CHRISTOPHER AMES, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 09, 2007

Neurological Surgery (License #A60247 in CA)

🟢

Initial NPI Registration & Enumeration May 19, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1265485155

Entity Type:

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

Enumeration Date: May 19, 2006

Last Update: July 13, 2026

Sole Proprietor: No

Update or Correct Profile

Mailing Address

1635 Divisadero Street, Suite 625, Box 1821

San Francisco, CA 941430001

Phone: 4154764029

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.