Active NPI 1265573307 Individual Practitioner Male Practitioner

Dr. John P Hammerstein , MD

Orthopaedic Surgery • Linton, IN

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. John Hammerstein, MD is a certified Orthopaedic Surgery practicing in Linton, IN. With approximately 24 years of clinical experience since graduating from Indiana University School Of Medicine in 2002, Dr. Hammerstein delivers high-quality medical care to the local community at 1043 N 1000 W.

Dr. Hammerstein is affiliated with Greene County General Hospital and accepts Medicare assignment.

Frequently performed procedures and clinical services include hyaluronan or derivative, synvisc or synvisc-one, for intra-articular injection, 1 mg, injection, dexamethasone sodium phosphate, 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

1043 N 1000 W

Linton, IN 47441

Telephone 8128473381

Medicare Profile & Education

Medical School

Indiana University School Of Medicine

Graduation Year

2002

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Orthopaedic Surgery in Linton, IN

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

24 Yrs Matches City Avg

City Avg: 24.0 Yrs

State Avg: 26.1 Yrs

Regional Practice Density

1 Specialists

Practicing in Linton, IN (530 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

83.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Hammerstein (24 Years) 24 Yrs

Linton Specialty Average (24.0 Years) 24.0 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
J7325 Hyaluronan or derivative, synvisc or synvisc-one, for intra-articular injection, 1 mg	2,496	39	$67.87	$8.74
J1100 Injection, dexamethasone sodium phosphate, 1 mg	573	100	$17.46	$0.11
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	335	181	$233.03	$117.42
20610 Aspiration and/or injection of fluid from large joint	270	118	$505.80	$64.52
99213 Established patient office or other outpatient visit, typically 15 minutes	184	117	$176.24	$83.04
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	108	108	$387.54	$153.63
73030 X-ray of shoulder, minimum of 2 views	85	50	$484.36	$23.19
73564 X-ray of knee, 4 or more views	78	64	$747.69	$32.89
73562 X-ray of knee, 3 views	67	60	$567.68	$28.84
73560 X-ray of knee, 1-2 views	42	19	$484.36	$22.72
73110 X-ray of wrist, minimum of 3 views	33	12	$436.57	$29.76
73501 X-ray of hip with pelvis, 1 view	28	15	$436.57	$21.54
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	24	24	$264.86	$99.93
73080 X-ray of elbow, minimum of 3 views	19	11	$473.54	$22.15
73502 X-ray of hip, 2-3 views	15	11	$484.36	$30.10
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	12	11	$342.32	$156.98
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	11	11	$510.21	$204.14

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J7325 Hyaluronan or derivative, synvisc or synvisc-one, for intra-articular injection, 1 mg	1,265	22	$295.69	$9.17
J1100 Injection, dexamethasone sodium phosphate, 1 mg	448	82	$13.17	$0.12
99213 Established patient office or other outpatient visit, typically 15 minutes	366	161	$175.87	$83.53
20610 Aspiration and/or injection of fluid from large joint	205	87	$456.24	$64.21
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	105	105	$257.08	$102.87
73030 X-ray of shoulder, minimum of 2 views	96	47	$470.25	$23.28
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	85	63	$150.60	$51.70
73564 X-ray of knee, 4 or more views	56	41	$716.25	$32.41
73562 X-ray of knee, 3 views	43	37	$551.15	$28.74
73560 X-ray of knee, 1-2 views	35	16	$470.25	$23.87
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	28	24	$225.80	$115.47
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	18	18	$376.25	$154.44

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J7325 Hyaluronan or derivative, synvisc or synvisc-one, for intra-articular injection, 1 mg	1,005	22	$71.99	$9.87
J1100 Injection, dexamethasone sodium phosphate, 1 mg	521	101	$4.77	$0.12
99213 Established patient office or other outpatient visit, typically 15 minutes	301	146	$170.50	$84.76
20610 Aspiration and/or injection of fluid from large joint	220	102	$401.80	$58.01
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	198	130	$146.20	$52.38
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	139	139	$249.65	$104.37
73030 X-ray of shoulder, minimum of 2 views	91	52	$456.55	$23.26
73564 X-ray of knee, 4 or more views	77	67	$697.55	$32.57
73562 X-ray of knee, 3 views	64	61	$535.10	$29.15
73560 X-ray of knee, 1-2 views	44	16	$456.55	$23.87
73610 X-ray of ankle, minimum of 3 views	43	14	$411.50	$26.10
73502 X-ray of hip, 2-3 views	16	15	$459.74	$33.24

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J7325 Hyaluronan or derivative, synvisc or synvisc-one, for intra-articular injection, 1 mg	534	12	$74.34	$10.96
J1100 Injection, dexamethasone sodium phosphate, 1 mg	380	76	$4.62	$0.15
99213 Established patient office or other outpatient visit, typically 15 minutes	284	149	$165.50	$85.70
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	156	156	$242.35	$104.19
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	150	102	$141.90	$52.50
20610 Aspiration and/or injection of fluid from large joint	149	81	$397.95	$57.41
73564 X-ray of knee, 4 or more views	87	74	$677.20	$30.96
73562 X-ray of knee, 3 views	71	64	$519.50	$28.03
73030 X-ray of shoulder, minimum of 2 views	68	47	$443.25	$22.77
73610 X-ray of ankle, minimum of 3 views	41	14	$399.50	$25.60
73560 X-ray of knee, 1-2 views	35	16	$455.91	$23.72
73502 X-ray of hip, 2-3 views	23	21	$448.46	$32.51

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J1100 Injection, dexamethasone sodium phosphate, 1 mg	259	48	$4.41	$0.12
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	177	93	$137.75	$42.85
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	123	123	$235.25	$101.95
99213 Established patient office or other outpatient visit, typically 15 minutes	119	86	$160.65	$70.45
20610 Aspiration and/or injection of fluid from large joint	78	50	$378.70	$56.48
73030 X-ray of shoulder, minimum of 2 views	65	32	$430.30	$21.57
73564 X-ray of knee, 4 or more views	64	46	$657.45	$29.83
73562 X-ray of knee, 3 views	42	32	$504.35	$27.11
73502 X-ray of hip, 2-3 views	34	18	$431.71	$31.12
73560 X-ray of knee, 1-2 views	23	13	$430.30	$22.84
99202 New patient office or other outpatient visit, typically 20 minutes	22	22	$183.60	$71.87
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	12	12	$206.60	$102.80

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J1100 Injection, dexamethasone sodium phosphate, 1 mg	84	19	$3.75	$0.13
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	58	58	$228.40	$99.82
73564 X-ray of knee, 4 or more views	33	28	$638.30	$29.18
99213 Established patient office or other outpatient visit, typically 15 minutes	27	22	$155.95	$69.62
73030 X-ray of shoulder, minimum of 2 views	22	17	$417.75	$20.39
73562 X-ray of knee, 3 views	22	22	$489.65	$27.32
20610 Aspiration and/or injection of fluid from large joint	21	18	$367.65	$55.75
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	17	15	$133.70	$42.04
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	14	12	$200.55	$102.20
29826 Shaving of part of shoulder bone and repair of ligament using an endoscope	14	14	$690.00	$58.13
29823 Removal of extensive shoulder joint tissue using an endoscope	11	11	$926.36	$84.04
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	11	11	$334.20	$153.98

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	142	112	$134.00	$72.42
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	87	74	$197.00	$107.15
72114 X-ray lower and sacral spine, minimum of 6 views	70	62	$180.00	$60.17
72100 X-ray of lower and sacral spine, 2-3 views	15	13	$101.00	$34.75

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	424	251	$134.00	$70.01
72114 X-ray lower and sacral spine, minimum of 6 views	201	165	$180.00	$59.72
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	156	126	$197.00	$102.97
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	118	86	$80.00	$42.69
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	50	50	$198.00	$106.27
72052 X-ray of upper spine, 6 or more views	45	42	$174.00	$53.33
22853 Insertion of cage or mesh device to spine bone and disc space during spine fusion	43	33	$885.00	$273.55
72100 X-ray of lower and sacral spine, 2-3 views	40	24	$101.00	$34.04
63047 Partial removal of middle spine bone with release of spinal cord and/or nerves	39	39	$3537.00	$1004.89
63048 Partial removal of spine bone with release of spinal cord and/or nerves	26	21	$687.00	$226.15
72070 X-ray of middle spine, 2 views	23	13	$94.00	$33.08
22558 Fusion of spine bones with removal of disc at lower spinal column, anterior approach	17	17	$4939.00	$987.12
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	16	16	$264.00	$141.15
72080 X-ray of middle and lower spine, 2 views	15	12	$77.00	$29.71
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	13	13	$304.00	$161.30
22845 Placement of stabilizing device to front, 2-3 spine bone segments	12	12	$2370.00	$725.29

Medical Specialties & State Licenses

CMS Verified: 2023-05-05

Orthopaedic Surgery Primary Specialty

NUCC Taxonomy Code: 207X00000X

State License IN 01065333A

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 - Orthopaedic Surgery of the Spine

NUCC Taxonomy Code: 207XS0117X

State License IN 01065333A

Recognized by several state medical boards as a fellowship subspecialty program of orthopaedic surgery, orthopaedic surgeons of the spine deal with the evaluation and nonoperative and operative treatment of the full spectrum of primary spinal disorders including trauma, degenerative, deformity, tumor, and reconstructive.

Orthopaedic Surgery - Sports Medicine

NUCC Taxonomy Code: 207XX0005X

State License IN 01065333A

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.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

200906320 (IN)

Hospital & Practice Group Affiliations

Greene County General Hospital

1185 N 1000, Linton, IN 474415282

Phone: 81284722812054

Practice Associates & Co-Workers

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

2 Associated Practitioners

Dr. Matthew Parmenter , DPM

Podiatrist

NPI 1013902089

Doctor of Podiatric Medicine

Dr. S. Gabrielsen , MD

Surgery

NPI 1942324157

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

11 Historical Events

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) November 30, 2022

Orthopaedic Surgery (License #01065333A in IN)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) November 09, 2022

Orthopaedic Surgery (License #01065333A in IN)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) December 15, 2020

Orthopaedic Surgery (License #01065333A in IN)

📍

Updated Practice Location July 31, 2019

Registered at 1043 N 1000 W, LINTON, IN 47441 (Tel: 8128473381)

📍

Updated Business Mailing Address July 31, 2019

Registered at 1043 N 1000 W, LINTON, IN 474415281 (Tel: 8128473381)

✅

NPI Profile Active March 06, 2014

NPI status registered as active in NPPES database

📍

Updated Practice Location March 06, 2014

Registered at 2831 FORT MISSOULA ROAD, SUITE 232, MISSOULA, MT 598047479 (Tel: 4067286101)

📍

Updated Business Mailing Address March 06, 2014

Registered at 2831 FORT MISSOULA ROAD, SUITE 232, MISSOULA, MT 598047479 (Tel: 4067286101)

👤

Provider Name / Credentials Updated March 06, 2014

Recorded as JOHN HAMMERSTEIN, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) March 06, 2014

Orthopaedic Surgery (License #01065333A in IN)

🟢

Initial NPI Registration & Enumeration February 10, 2007

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: 1265573307

Entity Type:

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

Enumeration Date: February 10, 2007

Last Update: May 05, 2023

Sole Proprietor: No

Update or Correct Profile

Mailing Address

1043 N 1000 W

Linton, IN 474415281

Phone: 8128473381

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.