Active NPI 1477956811 Individual Practitioner Male Practitioner

Nathaniel Gregoire

Physician Assistant - Surgical • Springfield, IL

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Nathaniel Gregoire is a certified Physician Assistant - Surgical practicing in Springfield, IL. With approximately 12 years of clinical experience since completing medical education in 2014, Nathaniel Gregoire delivers high-quality medical care to the local community at 800 N 1ST ST.

Nathaniel Gregoire maintains professional affiliations with Family Medical Center Of Lincoln, Llc, Memorial Physician Services, Springfield Clinic, Llp and accepts Medicare assignment.

Frequently performed procedures and clinical services include injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg, aspiration and/or injection of fluid from large joint, hyaluronan or derivative, euflexxa, for intra-articular injection, per dose. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

800 N 1st St

Springfield, IL 627023719

Telephone 2175287541

Associated Practice Facility / Clinic

🏢 Springfield Clinic, Llp Facility NPI 1316123284

Medicare Profile & Education

Medical School

Other

Graduation Year

2014

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant - Surgical in Springfield, IL

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

12 Yrs +0.5 yrs vs City Avg

City Avg: 11.5 Yrs

State Avg: 12.7 Yrs

Regional Practice Density

12 Specialists

Practicing in Springfield, IL (609 Statewide)

Telehealth Adoption Rate

8.3% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

81.9% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Gregoire (12 Years) 12 Yrs

Springfield Specialty Average (11.5 Years) 11.5 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
J0702 Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg	311	98	$18.00	$6.86
20610 Aspiration and/or injection of fluid from large joint	190	81	$394.17	$59.48
J7323 Hyaluronan or derivative, euflexxa, for intra-articular injection, per dose	85	15	$591.48	$120.97
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	75	68	$582.85	$106.41
99213 Established patient office or other outpatient visit, typically 15 minutes	61	48	$412.93	$74.07
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	27	27	$771.15	$134.63
20550 Injection into tendon or ligament	22	19	$256.00	$46.00

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J7328 Hyaluronan or derivative, gelsyn-3, for intra-articular injection, 0.1 mg	8,568	13	$4.00	$0.89
J0702 Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg	373	118	$18.00	$6.56
20610 Aspiration and/or injection of fluid from large joint	326	146	$416.81	$61.56
J7323 Hyaluronan or derivative, euflexxa, for intra-articular injection, per dose	180	45	$591.48	$127.61
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	87	81	$558.87	$104.71
99213 Established patient office or other outpatient visit, typically 15 minutes	79	65	$382.00	$74.55
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	23	23	$741.00	$138.39
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	16	16	$496.00	$93.13

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J7328 Hyaluronan or derivative, gelsyn-3, for intra-articular injection, 0.1 mg	21,840	33	$4.00	$1.94
J0702 Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg	500	148	$18.00	$6.67
20610 Aspiration and/or injection of fluid from large joint	368	162	$407.02	$62.21
99213 Established patient office or other outpatient visit, typically 15 minutes	190	157	$338.79	$75.82
J7323 Hyaluronan or derivative, euflexxa, for intra-articular injection, per dose	101	29	$591.48	$132.20
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	73	66	$509.16	$106.65
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	48	46	$203.58	$47.17
20600 Aspiration and/or injection of fluid from small joint	17	12	$249.00	$36.91
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	16	16	$681.13	$140.34
27447 Replacement of knee joint, both sides of knee	13	13	$7931.00	$177.53

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J0702 Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg	472	154	$18.00	$6.93
20610 Aspiration and/or injection of fluid from large joint	374	164	$399.65	$61.56
J7323 Hyaluronan or derivative, euflexxa, for intra-articular injection, per dose	231	58	$591.48	$134.83
99213 Established patient office or other outpatient visit, typically 15 minutes	225	191	$317.00	$75.94
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	142	112	$199.00	$46.40
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	20	19	$461.00	$108.71
27447 Replacement of knee joint, both sides of knee	20	20	$7931.00	$178.64
20550 Injection into tendon or ligament	17	13	$247.00	$34.91

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J0702 Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg	454	153	$18.00	$7.04
20610 Aspiration and/or injection of fluid from large joint	344	150	$380.02	$56.02
J7323 Hyaluronan or derivative, euflexxa, for intra-articular injection, per dose	185	47	$591.48	$142.35
99213 Established patient office or other outpatient visit, typically 15 minutes	177	157	$294.00	$62.80
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	150	118	$197.00	$37.93
27447 Replacement of knee joint, both sides of knee	30	30	$7931.00	$191.73
20600 Aspiration and/or injection of fluid from small joint	30	17	$249.00	$37.48
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	28	25	$98.00	$18.98
20550 Injection into tendon or ligament	16	14	$247.00	$45.54
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	14	14	$409.00	$90.74
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	14	14	$427.00	$91.50
27130 Replacement of thigh bone and hip joint with prosthesis	12	12	$13920.00	$192.24

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J0702 Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg	522	157	$9.77	$6.78
20610 Aspiration and/or injection of fluid from large joint	459	168	$126.66	$53.05
J7323 Hyaluronan or derivative, euflexxa, for intra-articular injection, per dose	278	55	$208.77	$141.76
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	211	167	$69.08	$37.23
99213 Established patient office or other outpatient visit, typically 15 minutes	182	169	$112.34	$60.78
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	100	23	$1.75	$1.58
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	56	44	$38.42	$18.52
27447 Replacement of knee joint, both sides of knee	30	27	$2880.36	$184.47
20550 Injection into tendon or ligament	18	17	$100.04	$45.08
27130 Replacement of thigh bone and hip joint with prosthesis	16	15	$2932.46	$183.69

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J0702 Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg	536	164	$8.06	$7.00
20610 Aspiration and/or injection of fluid from large joint	487	194	$84.60	$52.93
J7323 Hyaluronan or derivative, euflexxa, for intra-articular injection, per dose	330	74	$168.69	$143.20
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	304	228	$49.74	$35.30
99213 Established patient office or other outpatient visit, typically 15 minutes	117	117	$83.62	$58.34
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	46	36	$22.61	$17.43
27447 Replacement of knee joint, both sides of knee	37	36	$494.74	$186.84
27130 Replacement of thigh bone and hip joint with prosthesis	22	22	$433.64	$187.03
20550 Injection into tendon or ligament	15	12	$70.09	$34.14
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	11	11	$130.79	$82.87
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	11	11	$114.74	$88.78

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J0702 Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg	566	194	$7.79	$6.69
20610 Aspiration and/or injection of fluid from large joint	459	199	$81.90	$53.10
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	372	265	$48.35	$35.09
J7321 Hyaluronan or derivative, hyalgan, supartz or visco-3, for intra-articular injection, per dose	178	48	$94.51	$85.12
J7323 Hyaluronan or derivative, euflexxa, for intra-articular injection, per dose	120	29	$168.24	$151.46
99213 Established patient office or other outpatient visit, typically 15 minutes	96	91	$80.68	$59.06
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	39	39	$118.87	$87.01
27447 Replacement of knee joint, both sides of knee	35	34	$376.57	$186.27
99202 New patient office or other outpatient visit, typically 20 minutes	24	24	$87.26	$59.60
20550 Injection into tendon or ligament	22	19	$57.40	$41.02
20600 Aspiration and/or injection of fluid from small joint	21	13	$78.85	$28.44
27130 Replacement of thigh bone and hip joint with prosthesis	15	15	$518.98	$186.38
20551 Injection into tendon at attachment to bone or muscle	13	11	$80.15	$45.82
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	12	12	$114.89	$88.11
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	12	12	$21.16	$16.20

Medical Specialties & State Licenses

CMS Verified: 2020-05-22

Physician Assistant - Surgical Primary Specialty

NUCC Taxonomy Code: 363AS0400X

State License IL 085005246

Definition to come...

Hospital & Practice Group Affiliations

Springfield Clinic, Llp

3501 Old Jacksonville Rd, Springfield, IL 627118358

Phone: 2175287541

Springfield Clinic, Llp

100 Stahlhut Dr, Lincoln, IL 626565059

Phone: 2177359555

Memorial Physician Services

515 N College St, Lincoln, IL 626561401

Phone: 2177329681

Family Medical Center Of Lincoln, Llc

515 N College, Lincoln, IL 626561401

Springfield Clinic, Llp

747 N Rutlage Baylis Medical Bld, Springfield, IL 627026700

Phone: 2175457722

Memorial Physician Services

101 E Plummer Blvd, Chatham, IL 626298047

Phone: 2175882600

Springfield Clinic, Llp

1603 W Washington St, Springfield, IL 627024757

Phone: 2175287541

Springfield Clinic, Llp

747 N Rutledge St, Springfield, IL 627026700

Phone: 2177572257

Springfield Clinic, Llp

775 Engineering Ave, Springfield, IL 627035909

Phone: 2175224300

Springfield Clinic, Llp

800 N 1st St, Springfield, IL 627023719

Phone: 2175287541

Springfield Clinic, Llp

1025 S 6th St, Springfield, IL 627032403

Phone: 2175287541

Practice Associates & Co-Workers

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

40 Associated Practitioners

Dr. Kaitlin Henry , MD

Family Medicine

NPI 1003136276

Doctor of Medicine (M.D.)

Sydney Lynch

Physician Assistant - Surgical

NPI 1003404864

Jeremy Elliott

Nurse Practitioner - Family

NPI 1003416546

Jessica Lee , APN

Nurse Practitioner - Family

NPI 1003461831

Advanced Practice Nurse

Julie Hart , PA-C

Physician Assistant

NPI 1003867342

Physician Assistant (Certified)

Barbara Wolfson , LCPC

Counselor

NPI 1003900739

Licensed Clinical Professional Counselor

Career & Practice History Timeline

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

8 Historical Events

📍

Updated Practice Location March 14, 2019

Registered at 800 N 1ST ST, SPRINGFIELD, IL 627023719 (Tel: 2175287541)

📍

Updated Business Mailing Address March 14, 2019

Registered at 1025 S 6TH ST, SPRINGFIELD, IL 627032403 (Tel: 2175287541)

✅

NPI Profile Active September 30, 2014

NPI status registered as active in NPPES database

📍

Updated Practice Location September 30, 2014

Registered at 1301 S KOKE MILL RD, SPRINGFIELD, IL 627119252 (Tel: 2175479100)

📍

Updated Business Mailing Address September 30, 2014

Registered at 1301 S KOKE MILL RD, SPRINGFIELD, IL 627119252 (Tel: 2175479100)

👤

Provider Name / Credentials Updated September 30, 2014

Recorded as NATHANIEL GREGOIRE

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) September 30, 2014

Physician Assistant (License #085005246 in IL)

🟢

Initial NPI Registration & Enumeration September 30, 2014

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: 1477956811

Entity Type:

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

Enumeration Date: September 30, 2014

Last Update: May 22, 2020

Sole Proprietor: No

Update or Correct Profile

Mailing Address

1025 S 6th St

Springfield, IL 627032403

Phone: 2175287541

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.