Active NPI 1790741262 Individual Practitioner Male Practitioner

Dr. Gregory J Porter , MD

Anesthesiology • Grass Valley, CA

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Gregory Porter, MD is a certified Anesthesiology practicing in Grass Valley, CA. With approximately 36 years of clinical experience since graduating from State University Of New York At Stony Brook, School Of Medicine in 1990, Dr. Porter delivers high-quality medical care to the local community at 400 SIERRA COLLEGE DR STE B.

Dr. Porter is affiliated with Interventional Pain Solutions Pc and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include telephone medical discussion with physician, anesthesia for lens surgery, 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

400 Sierra College Dr Ste B

Grass Valley, CA 959455093

Telephone 5302723428

Fax 5302723429

Associated Practice Facility / Clinic

🏢 Gregory J Porter Md Inc Facility NPI 1588849954

Medicare Profile & Education

Medical School

State University Of New York At Stony Brook, School Of Medicine

Graduation Year

1990

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Anesthesiology in Grass Valley, CA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

36 Yrs +11.2 yrs vs City Avg

City Avg: 24.8 Yrs

State Avg: 27.4 Yrs

Regional Practice Density

10 Specialists

Practicing in Grass Valley, CA (7879 Statewide)

Telehealth Adoption Rate

20.0% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

77.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Porter (36 Years) 36 Yrs

Grass Valley Specialty Average (24.8 Years) 24.8 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
99443 Telephone medical discussion with physician, 21-30 minutes	710	699	$300.00	$129.96
00142 Anesthesia for lens surgery	595	396	$602.02	$122.32
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	466	267	$503.45	$128.59
96138 Administration of psychological or neuropsychological test by technician, first 30 minutes	315	184	$71.72	$36.58
96132 Evaluation of neuropsychological test, first hour	312	182	$260.84	$129.23
96130 Evaluation of psychological test, first hour	310	181	$240.16	$119.82
99442 Telephone medical discussion with physician, 11-20 minutes	289	212	$200.00	$92.24
G0396 Alcohol and/or substance (other than tobacco) misuse structured assessment (e.g., audit, dast), and brief intervention 15 to 30 minutes	266	160	$69.68	$34.22
99213 Established patient office or other outpatient visit, typically 15 minutes	155	128	$359.62	$91.52
97750 Test or measurement for functional capacity, each 15 minutes	142	64	$250.00	$30.07
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	81	81	$645.61	$168.55
64493 Injection of lower or sacral spine facet joint using imaging guidance, single level	65	41	$879.39	$100.24
64494 Injection of lower or sacral spine facet joint using imaging guidance, second level	64	40	$440.61	$55.41
G0444 Annual depression screening, 5 to 15 minutes	56	56	$38.22	$19.62
00140 Anesthesia for procedure on eye	49	35	$728.37	$147.41
99441 Telephone medical discussion with physician, 5-10 minutes	47	45	$100.00	$57.62
64483 Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level	47	30	$498.79	$110.61
G0506 Comprehensive assessment of and care planning for patients requiring chronic care management services (list separately in addition to primary monthly care management service)	39	37	$70.00	$63.77
64484 Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level	37	22	$483.88	$50.40
64491 Injection of upper or middle spine facet joint using imaging guidance, second level	17	13	$500.00	$57.57
64490 Injection of upper or middle spine facet joint using imaging guidance, single level	17	13	$500.00	$103.96
00103 Anesthesia for procedure on eyelid	16	16	$976.25	$198.13
64635 Destruction of lower or sacral spinal facet joint nerves using imaging guidance, single facet joint	12	12	$1413.87	$239.60

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99443 Telephone medical discussion with physician, 21-30 minutes	678	672	$300.00	$129.78
00142 Anesthesia for lens surgery	582	402	$610.05	$126.83
99442 Telephone medical discussion with physician, 11-20 minutes	377	297	$200.00	$92.25
64493 Injection of lower or sacral spine facet joint using imaging guidance, single level	96	49	$804.17	$90.76
64494 Injection of lower or sacral spine facet joint using imaging guidance, second level	95	48	$400.00	$50.73
00140 Anesthesia for procedure on eye	59	43	$747.97	$155.96
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	53	47	$258.40	$130.31
64483 Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level	43	27	$500.00	$110.98
64484 Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level	30	19	$500.00	$51.09
97750 Test or measurement for functional capacity, each 15 minutes	24	12	$250.00	$30.36
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	22	22	$334.86	$168.94
00103 Anesthesia for procedure on eyelid	19	19	$1027.89	$214.33
64490 Injection of upper or middle spine facet joint using imaging guidance, single level	18	14	$500.00	$105.01
64491 Injection of upper or middle spine facet joint using imaging guidance, second level	18	14	$500.00	$58.72
99441 Telephone medical discussion with physician, 5-10 minutes	17	16	$100.00	$57.70
96138 Administration of psychological or neuropsychological test by technician, first 30 minutes	17	15	$71.72	$36.17
96132 Evaluation of neuropsychological test, first hour	17	15	$260.84	$131.54
96130 Evaluation of psychological test, first hour	17	15	$240.16	$121.11
G0396 Alcohol and/or substance (other than tobacco) misuse structured assessment (e.g., audit, dast), and brief intervention 15 to 30 minutes	14	12	$69.68	$35.14
99213 Established patient office or other outpatient visit, typically 15 minutes	13	12	$182.92	$92.24
G0506 Comprehensive assessment of and care planning for patients requiring chronic care management services (list separately in addition to primary monthly care management service)	11	11	$70.00	$63.16

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99443 Telephone medical discussion with physician, 21-30 minutes	634	626	$300.00	$132.03
00142 Anesthesia for lens surgery	573	394	$634.28	$132.13
99442 Telephone medical discussion with physician, 11-20 minutes	345	266	$200.00	$93.51
64493 Injection of lower or sacral spine facet joint using imaging guidance, single level	89	43	$808.99	$93.32
64494 Injection of lower or sacral spine facet joint using imaging guidance, second level	84	42	$400.00	$52.17
64483 Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level	67	37	$503.73	$114.04
00140 Anesthesia for procedure on eye	66	49	$763.18	$160.04
99441 Telephone medical discussion with physician, 5-10 minutes	60	53	$100.00	$58.22
64484 Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level	44	24	$500.00	$52.03
00103 Anesthesia for procedure on eyelid	14	14	$996.43	$211.29

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
00142 Anesthesia for lens surgery	669	443	$709.84	$139.02
99443 Telephone medical discussion with physician, 21-30 minutes	596	592	$300.00	$135.10
99442 Telephone medical discussion with physician, 11-20 minutes	505	397	$199.21	$94.77
64494 Injection of lower or sacral spine facet joint using imaging guidance, second level	109	44	$400.00	$53.15
64493 Injection of lower or sacral spine facet joint using imaging guidance, single level	109	44	$800.00	$93.64
99441 Telephone medical discussion with physician, 5-10 minutes	92	82	$100.00	$58.83
64495 Injection of lower or sacral spine facet joint using imaging guidance, third and any additional level	41	26	$400.00	$53.90
64483 Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level	39	23	$500.00	$115.48
00103 Anesthesia for procedure on eyelid	29	27	$1183.45	$242.70
00140 Anesthesia for procedure on eye	18	16	$876.67	$175.85
01480 Anesthesia for open procedure on bones of lower leg, ankle and foot	12	12	$737.50	$152.88

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
00142 Anesthesia for lens surgery	584	377	$695.98	$141.15
99442 Telephone medical discussion with physician, 11-20 minutes	349	285	$200.00	$78.51
99443 Telephone medical discussion with physician, 21-30 minutes	311	306	$300.00	$113.82
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	170	170	$400.00	$110.97
99441 Telephone medical discussion with physician, 5-10 minutes	150	125	$99.34	$47.48
64493 Injection of lower or sacral spine facet joint using imaging guidance, single level	132	54	$800.00	$94.53
64494 Injection of lower or sacral spine facet joint using imaging guidance, second level	131	53	$400.00	$54.13
64495 Injection of lower or sacral spine facet joint using imaging guidance, third and any additional level	114	45	$400.00	$54.89
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	91	86	$300.00	$111.32
64483 Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level	67	29	$503.73	$118.07
64484 Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level	42	18	$500.00	$54.42
01480 Anesthesia for open procedure on bones of lower leg, ankle and foot	26	26	$820.38	$169.79
00140 Anesthesia for procedure on eye	23	19	$841.74	$172.89
00103 Anesthesia for procedure on eyelid	20	20	$1028.50	$211.75

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
00142 Anesthesia for lens surgery	799	501	$676.18	$136.77
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	635	635	$400.00	$110.91
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	320	285	$300.00	$111.98
64493 Injection of lower or sacral spine facet joint using imaging guidance, single level	145	67	$800.00	$93.08
64494 Injection of lower or sacral spine facet joint using imaging guidance, second level	141	66	$400.00	$53.25
64495 Injection of lower or sacral spine facet joint using imaging guidance, third and any additional level	129	61	$400.00	$54.01
64483 Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level	55	27	$509.09	$117.35
00103 Anesthesia for procedure on eyelid	51	49	$990.00	$204.39
64484 Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level	41	22	$512.20	$54.73
00140 Anesthesia for procedure on eye	16	15	$841.88	$177.14

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
00142 Anesthesia for lens surgery	812	502	$623.03	$130.77
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	625	625	$400.00	$107.29
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	301	274	$300.00	$107.92
64493 Injection of lower or sacral spine facet joint using imaging guidance, single level	131	55	$800.00	$91.04
64494 Injection of lower or sacral spine facet joint using imaging guidance, second level	126	54	$400.00	$51.67
64495 Injection of lower or sacral spine facet joint using imaging guidance, third and any additional level	119	50	$400.00	$52.40
00140 Anesthesia for procedure on eye	61	43	$769.02	$160.96
00103 Anesthesia for procedure on eyelid	51	48	$963.73	$201.54
64483 Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level	35	20	$515.71	$114.35
64490 Injection of upper or middle spine facet joint using imaging guidance, single level	26	12	$500.00	$106.24
64491 Injection of upper or middle spine facet joint using imaging guidance, second level	26	12	$500.00	$60.07
64484 Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level	21	12	$500.00	$51.85

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
00142 Anesthesia for lens surgery	678	411	$625.15	$132.72
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	501	501	$400.20	$110.67
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	233	215	$300.43	$110.91
64493 Injection of lower or sacral spine facet joint using imaging guidance, single level	95	43	$804.21	$94.47
64494 Injection of lower or sacral spine facet joint using imaging guidance, second level	93	41	$400.00	$53.64
64495 Injection of lower or sacral spine facet joint using imaging guidance, third and any additional level	86	38	$400.00	$54.42
00103 Anesthesia for procedure on eyelid	70	65	$989.71	$213.86
64483 Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level	41	16	$800.00	$116.14
64484 Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level	39	14	$491.03	$53.51
00140 Anesthesia for procedure on eye	26	21	$770.38	$166.53
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	12	12	$500.00	$168.12
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	11	11	$400.00	$77.44

Medical Specialties & State Licenses

CMS Verified: 2024-06-18

Anesthesiology Primary Specialty

NUCC Taxonomy Code: 207L00000X

State License CA G72310

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.

Anesthesiology - Pain Medicine

NUCC Taxonomy Code: 207LP2900X

State License CA G72310

An anesthesiologist who provides a high level of care, either as a primary physician or consultant, for patients experiencing problems with acute, chronic and/or cancer pain in both hospital and ambulatory settings. Patient care needs are also coordinated with other specialists.

Pain Medicine - Interventional Pain Medicine

NUCC Taxonomy Code: 208VP0014X

State License CA G72310

Interventional Pain Medicine is the discipline of medicine devoted to the diagnosis and treatment of pain and related disorders principally with the application of interventional techniques in managing subacute, chronic, persistent, and intractable pain, independently or in conjunction with other modalities of treatment.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

00G723100 (CA)

Hospital & Practice Group Affiliations

Interventional Pain Solutions Pc

605 W E Ave, Chico, CA 959267201

Phone: 5303434757

Secondary Practice Locations

605 W East Ave

Chico, CA 959267201

Phone: 5303434757

Practice Associates & Co-Workers

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

1 Associated Practitioners

Andrew Magan , CRNA

Nurse Anesthetist, Certified Registered

NPI 1780734004

Certified Registered Nurse Anesthetist

Career & Practice History Timeline

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

9 Historical Events

📍

Updated Practice Location October 11, 2023

Registered at 400 SIERRA COLLEGE DR STE B, GRASS VALLEY, CA 959455093 (Tel: 5302723428)

📍

Updated Business Mailing Address October 11, 2023

Registered at PO BOX 25033, SANTA ANA, CA 927995033 (Tel: 8008837243)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) October 11, 2023

Anesthesiology (License #G72310 in CA)

✅

NPI Profile Active May 08, 2013

NPI status registered as active in NPPES database

📍

Updated Practice Location May 08, 2013

Registered at 400B SIERRA COLLEGE DR, GRASS VALLEY, CA 959455089 (Tel: 5302723428)

📍

Updated Business Mailing Address May 08, 2013

Registered at 210 N TUSTIN AVE, SANTA ANA, CA 927053807 (Tel: 8008837243)

👤

Provider Name / Credentials Updated May 08, 2013

Recorded as GREGORY PORTER, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) May 08, 2013

Anesthesiology (License #G72310 in CA)

🟢

Initial NPI Registration & Enumeration April 25, 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: 1790741262

Entity Type:

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

Enumeration Date: April 25, 2006

Last Update: June 18, 2024

Sole Proprietor: No

Update or Correct Profile

Mailing Address

Po Box 25033

Santa Ana, CA 927995033

Phone: 8008837243

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.