JOHN P HAMMERSTEIN M.D.
NPI 1265573307
Orthopaedic Surgery in Linton, IN

Active since February 10, 2007PECOS EnrolledAccepts Medicare Assignment
1043 N 1000 W, LINTON, IN 47441(812) 847-3381 Get Directions Write a Review

NPPES record last updated: May 5, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 5, 2023, Nov 30, 2022, Nov 9, 2022 and 2 more (5 updates tracked since 2019).

About John P Hammerstein M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHN P HAMMERSTEIN M.D. (NPI 1265573307) is an individual orthopaedic surgery provider in Linton, Indiana, licensed in Indiana (01065333A) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS, is affiliated with Greene County General Hospital, and is a graduate of Indiana University School Of Medicine (2002).

NPPES Registry Identity

NPI1265573307
Entity TypeIndividualMale
Primary Taxonomy207X00000X
Provider Legal NameJOHN P HAMMERSTEINCredential: M.D.
Location Address1043 N 1000 WLinton, IN 47441
Mailing Address1043 N 1000 WLinton, IN 47441-5281 · (812) 847-3381
Sole ProprietorNo
Medical School CMSIndiana University School Of MedicineGraduated 2002
Enumeration DateFebruary 10, 2007
Last NPPES UpdateMay 5, 20235 updates tracked since enumeration
NPPES CertifiedMay 5, 2023
NPI 1265573307 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207X00000X
License Licensed in IN · 01065333A
Definition
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.
Also ListedOrthopaedic Surgery · Orthopaedic Surgery of the SpineTaxonomy 207XS0117X · License 01065333A (IN)
Also ListedOrthopaedic Surgery · Sports MedicineTaxonomy 207XX0005X · License 01065333A (IN)
1043 N 1000 W, Linton, IN 47441

Other Identifiers 1

Medicaid200906320IN

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

John P Hammerstein M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5193821056
PECOS Enrollment IDI20080804000100
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 17

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Hyaluronan or derivative, synvisc or synvisc-one, for intra-articular injection, 1 mg J7325
Synvisc or Synvisc-One is a treatment involving an injection of a substance called hyaluronan into your joints. This substance, naturally found in the body, helps lubricate and cushion your joints, reducing pain and improving mobility. It's often used for arthritis patients.
2,496 services39 patients
Injection, dexamethasone sodium phosphate, 1 mg J1100
Dexamethasone sodium phosphate is a medication given via injection. It is a type of steroid that helps reduce inflammation and immune responses. It can be used to treat a variety of conditions, such as allergies, skin conditions, arthritis, and more.
573 services100 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
335 services181 patients
Aspiration and/or injection of fluid from large joint 20610
This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.
270 services118 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
184 services117 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
108 services108 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Greene County General Hospital

Critical Access Hospitals · Linton, IN
4/5 CMS rating
OwnershipGovernment - Local
CMS Certification Number151317
Location1185 N 1000 WLinton, IN 47441 · Greene County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 47441 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$82.04 typical visit price
range $53.07 – $161.76
Typical copayment $20.51 (range $13.26 – $40.44)
Most-billed visit code 99203
Established Patient
$66.48 typical visit price
range $16.93 – $132.22
Typical copayment $16.62 (range $4.23 – $33.05)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Shoulder orthosis, acromio/clavicular (canvas and webbing type), prefabricated, off-the-shelf L3670
DME-Orthotic Devices · category DF000N
2 suppliers18 claims18 services$85.82 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Family Medicine
1043 N 1000 W
LINTON, IN 47441
Nurse Practitioner (Adult Health)
1043 N 1000 W
LINTON, IN 47441
Surgery
1043 N 1000 W
LINTON, IN 47441

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Hammerstein's NPI number?

The NPI number for John Hammerstein is 1265573307. It was assigned to this individual provider in the NPPES registry on February 10, 2007.

Where is John Hammerstein located?

John Hammerstein practices at 1043 N 1000 W, Linton, IN 47441. The listed phone number is (812) 847-3381.

What is John Hammerstein's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

Is John Hammerstein enrolled in Medicare?

Yes. John Hammerstein is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does John Hammerstein accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian and CareSource list John Hammerstein as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is John Hammerstein affiliated with any hospitals?

According to CMS data, John Hammerstein is affiliated with Greene County General Hospital.

When was this NPI record last updated?

The NPPES record for John Hammerstein was last updated on May 5, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.