DR. GREGORY TENNANT D.O.
NPI 1073581385
Orthopaedic Surgery in Lancaster, CA

NPI Status: Active since March 10, 2006

Contact Information

42135 10TH ST W STE 101
LANCASTER, CA
ZIP 93534
Phone: (661) 726-5005
Fax: (661) 726-5377

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  • Individual
  • Male
  • Years of Experience 27
  • Orthopaedic Surgery
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About GREGORY TENNANT

This page provides the complete NPI Profile along with additional information for Gregory Tennant, a provider established in Lancaster, California with a medical specialization in Orthopaedic Surgery and more than 27 years of experience. The healthcare provider is registered in the NPI registry with number 1073581385 assigned on March 2006. The practitioner's primary taxonomy code is 207X00000X with license number 20A9121 (CA). The provider is registered as an individual and his NPI record was last updated 3 years ago.

NPI
1073581385
Provider Name
DR. GREGORY TENNANT D.O.
Gender
Male
Entity Type
Individual
Location Address
42135 10TH ST W STE 101 LANCASTER, CA 93534
Location Phone
(661) 726-5005
Location Fax
(661) 726-5377
Mailing Address
42135 10TH ST W STE 101 LANCASTER, CA 93534
Mailing Phone
(661) 726-5005
Mailing Fax
(661) 726-5377
Medical School Name
OTHER
Graduation Year
1999
Is Sole Proprietor?
Yes
Enumeration Date
03-10-2006
Last Update Date
08-10-2023
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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Orthopaedic Surgery

Taxonomy Code
207X00000X
Type
Allopathic & Osteopathic Physicians
License No.
20A9121
License State
CA
Taxonomy Description
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.

Medicare Participation & PECOS Enrollment Status

Gregory Tennant is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Gregory Tennant is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 7810973930

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20050923000643

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Aspiration and/or injection of fluid from large joint

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.

This service was performed 41 times for 29 patients

Aspiration and/or injection of fluid large joint using ultrasound guidance

This procedure involves using ultrasound technology to accurately locate a large joint, usually the knee or shoulder. A needle is then inserted to either extract fluid (aspiration) or inject medication. The ultrasound helps ensure precision and safety.

This service was performed 70 times for 34 patients

Established patient office or other outpatient visit, 20-29 minutes

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.

This service was performed 116 times for 75 patients

Follow-up hospital inpatient care per day, typically 25 minutes

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

This service was performed 12 times for 12 patients

Hip replacement

A hip replacement is a surgical procedure where a worn-out or damaged hip joint is replaced with an artificial one. This procedure can greatly reduce pain and improve mobility. It's often recommended when other treatments like physical therapy or medications fail to alleviate symptoms.

This service was performed for 1-10 patients

Hyaluronan or derivative, trivisc, for intra-articular injection, 1 mg

Trivisc is a treatment involving injections of a substance called hyaluronan into your joint, typically the knee. This substance is similar to a natural fluid in your joints that helps cushion and lubricate them. Trivisc can help reduce pain and improve joint movement.

This service was performed 850 times for 11 patients

Hyaluronan or derivitive, genvisc 850, for intra-articular injection, 1 mg

Genvisc 850 is an injection containing hyaluronan, a substance naturally found in your joints. It helps to lubricate and cushion your joints. This treatment is used to relieve knee pain due to osteoarthritis when other treatments have not worked.

This service was performed 925 times for 12 patients

Initial hospital inpatient care per day, typically 30 minutes

Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.

This service was performed 16 times for 16 patients

Initial hospital inpatient care per day, typically 50 minutes

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

This service was performed 24 times for 24 patients

Injection, ketorolac tromethamine, per 15 mg

Ketorolac tromethamine is a medication administered through injection, often used to manage moderate to severe pain. Each 15 mg dose helps to reduce hormones causing inflammation and pain in the body. It is not recommended for long-term use.

This service was performed 30 times for 12 patients

Injection, triamcinolone acetonide, not otherwise specified, 10 mg

Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.

This service was performed 419 times for 47 patients

Lower limb (leg) arthroscopy (minimally invasive joint repair)

Lower limb arthroscopy is a minimally invasive procedure that allows doctors to examine and repair issues in your leg joints. It involves making small incisions through which a tiny camera and instruments are inserted. This technique can help diagnose and treat various joint problems with less pain and quicker recovery time.

This service was performed for 11 patients

New patient office or other outpatient visit, 30-44 minutes

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

This service was performed 68 times for 68 patients

New patient office or other outpatient visit, 45-59 minutes

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.

This service was performed 11 times for 11 patients

Treatment of broken neck of thigh bone with bone implant

This procedure involves repairing a fractured thigh bone by inserting a bone implant. The implant helps stabilize the bone, allowing it to heal correctly. It's performed under anesthesia and requires a hospital stay for recovery.

This service was performed 13 times for 13 patients

X-ray of hip, 2-3 views

An X-ray of the hip with 2-3 views is a non-invasive imaging test. It uses a small amount of radiation to produce pictures of the hip joint. These images help in diagnosing conditions like fractures, arthritis, or other abnormalities. The process is quick and painless.

This service was performed 19 times for 17 patients

X-ray of knee, 3 views

An X-ray of the knee, 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the knee from three different angles. This helps medical professionals to diagnose and monitor conditions like arthritis, fractures, or infections. The process is quick and painless.

This service was performed 43 times for 26 patients

X-ray of shoulder, minimum of 2 views

An X-ray of the shoulder, with a minimum of 2 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of your shoulder bones. This helps in diagnosing conditions like fractures, arthritis, or other abnormalities. The procedure is quick and painless.

This service was performed 36 times for 24 patients

X-ray of wrist, minimum of 3 views

An X-ray of the wrist, minimum of 3 views, is a diagnostic procedure that uses radiation to create images of your wrist from different angles. This helps detect fractures, infections, or other abnormalities for accurate diagnosis and treatment planning.

This service was performed 44 times for 17 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $24.09 for a new patient copayment and $19.49 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 93534 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99203

  • Average New Patient Price $96.36
  • Minimum New Patient Price $62.96
  • Maximum New Patient Price $187.6
  • Average New Patient Copayment $24.09
  • Minimum New Patient Copayment $15.74
  • Maximum New Patient Copayment $46.9

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99213

  • Average Established Patient Price $77.96
  • Minimum Established Patient Price $20.84
  • Maximum Established Patient Price $153.61
  • Average Established Patient Copayment $19.49
  • Minimum Established Patient Copayment $5.21
  • Maximum Established Patient Copayment $38.4

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1073581385, we treat the final digit (5) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 55. The final step is to find the difference between that total and the next multiple of ten (60 - 55 = 5).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
0
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
3
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
8
Unchanged
Pos 7
1
Doubled → 2
Pos 8
3
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
5
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 7 → 14 → 5 5 → 10 → 1 1 → 2 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 0 + 1 + 4 + 3 + 1 + 0 + 8 + 2 + 3 + 1 + 6 + 24 = 55

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 55 is 60. The difference is the calculated check digit.

60 - 55 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1073581385.

Other Providers at the Same Location


The following 6 providers are registered at the same or a nearby location.

Orthopaedic Surgery
42135 10TH ST W STE 101
LANCASTER, CA 93534
Physical Medicine & Rehabilitation
42135 10TH ST W STE 101
LANCASTER, CA 93534
Orthopaedic Surgery
42135 10TH ST W STE 101
LANCASTER, CA 93534
Orthopaedic Surgery
42135 10TH ST W STE 101
LANCASTER, CA 93534
Physical Medicine & Rehabilitation
42135 10TH ST W STE 101
LANCASTER, CA 93534
Nurse Practitioner (Family)
42135 10TH ST W STE 101
LANCASTER, CA 93534

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1073581385, enumerated as an "individual" on March 10, 2006.

The provider is located at 42135 10TH ST W STE 101 LANCASTER, CA 93534 and the phone number is (661) 726-5005.

Orthopaedic Surgery with taxonomy code 207X00000X.