DR. ANDREW THOMAS ASSENMACHER M.D.
NPI 1578791240
Orthopaedic Surgery - Sports Medicine in Monroe, MI

NPI Status: Active since July 01, 2009

Contact Information

1420 N MONROE ST
MONROE, MI
ZIP 48162
Phone: (734) 240-8480
Fax: (734) 384-0469

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  • Individual
  • Male
  • Years of Experience 18
  • Orthopaedic Surgery
  • Sports Medicine
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About ANDREW ASSENMACHER

This page provides the complete NPI Profile along with additional information for Andrew Assenmacher, a provider established in Monroe, Michigan with a medical specialization in Orthopaedic Surgery, focusing in sports medicine and more than 18 years of experience. He graduated from University Of Toledo College Of Medicine in 2009. The healthcare provider is registered in the NPI registry with number 1578791240 assigned on July 2009. The practitioner's primary taxonomy code is 207XX0005X with license number 4301095012 (MI). The provider is registered as an individual and his NPI record was last updated June 2026.

NPI
1578791240
Provider Name
DR. ANDREW THOMAS ASSENMACHER M.D.
Gender
Male
Entity Type
Individual
Location Address
1420 N MONROE ST MONROE, MI 48162
Location Phone
(734) 240-8480
Location Fax
(734) 384-0469
Mailing Address
1420 N MONROE ST MONROE, MI 48162
Medical School Name
UNIVERSITY OF TOLEDO COLLEGE OF MEDICINE
Graduation Year
2009
Is Sole Proprietor?
No
Enumeration Date
07-01-2009
Last Update Date
06-09-2026
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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 Sports Medicine

Taxonomy Code
207XX0005X
Type
Allopathic & Osteopathic Physicians
License No.
4301095012
License State
MI
Taxonomy Description
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.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207X00000XAllopathic & Osteopathic Physicians

Orthopaedic Surgery

4301095012 (MI)
2207X00000XAllopathic & Osteopathic Physicians

Orthopaedic Surgery

35.129521 (OH)
3207XX0005XAllopathic & Osteopathic Physicians

Orthopaedic Surgery
Sports Medicine

35.129521 (OH)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • Anthem Bronze Pathway 10600 ($0 Virtual PCP + $0 Select Drugs) - HMO
  • Anthem Bronze Pathway 10600 Adult Dental/Vision ($0 Virtual PCP + $0 Select Drugs) - HMO
  • Anthem Bronze Pathway 7500 Standard ($0 Virtual PCP + $0 Select Drugs) - HMO
  • Anthem Bronze Pathway 8500 for HSA - HMO
  • Anthem Gold Pathway 2000 Standard ($0 Virtual PCP + $0 Select Drugs) - HMO
  • Anthem Heart Healthy Bronze Pathway 6000 ($0 Virtual PCP + $0 Select Drugs) - HMO
  • Anthem Heart Healthy Silver Pathway 5000 ($0 Virtual PCP + $0 Select Drugs) - HMO
  • Anthem Silver Pathway 4000 ($0 Virtual PCP + $0 Select Drugs) - HMO
  • Anthem Silver Pathway 4000 Adult Dental/Vision ($0 Virtual PCP + $0 Select Drugs) - HMO
  • Anthem Silver Pathway 5500 for HSA - HMO
  • Blue Cross� Preferred HMO Bronze Extra - HMO
  • Blue Cross� Preferred HMO Bronze Saver HSA - HMO
  • Blue Cross� Preferred HMO Bronze Secure - HMO
  • Blue Cross� Preferred HMO Gold - HMO
  • Blue Cross� Preferred HMO Gold Extra - HMO
  • Blue Cross� Preferred HMO Silver - HMO
  • Blue Cross� Preferred HMO Silver Extra - HMO
  • Blue Cross� Preferred HMO Silver Saver - HMO
  • Blue Cross� Preferred HMO Value - HMO
  • Blue Cross� Select HMO Bronze Extra - HMO
  • Blue Cross� Premier PPO Bronze Extra - PPO
  • Blue Cross� Premier PPO Bronze Saver HSA - PPO
  • Blue Cross� Premier PPO Bronze Secure - PPO
  • Blue Cross� Premier PPO Gold - PPO
  • Blue Cross� Premier PPO Gold Extra - PPO
  • Blue Cross� Premier PPO Silver - PPO
  • Blue Cross� Premier PPO Silver Extra - PPO
  • Blue Cross� Premier PPO Silver Saver HSA - PPO
  • Blue Cross� Premier PPO Value - PPO
  • Bronze 7500 $25 Generic Drugs - HMO
  • Bronze 7500 $25 Generic Drugs + Adult Vision & Fitness - HMO
  • Core Gold 1500 $10 Generic Drugs - HMO
  • Core Gold 1500 $10 Generic Drugs + Adult Vision & Fitness - HMO
  • Diabetes Gold 3000 $0 Chronic Care Drugs & Services - HMO
  • Diabetes Gold 3000 $0 Chronic Care Drugs & Services + Adult Vision & Fitness - HMO
  • Diabetes Silver 5000 $0 Chronic Care Drugs & Services - HMO
  • Diabetes Silver 5000 $0 Chronic Care Drugs & Services + Adult Vision & Fitness - HMO
  • Gold 2000 $15 Generic Drugs - HMO
  • Gold 2000 $15 Generic Drugs + Adult Vision & Fitness - HMO
  • Bronze $8,300 w/ Adult Dental ON-EX - HMO
  • Bronze $8,300 w/ Virtual & Wellness ON-EX - HMO
  • Bronze HSA $7,300 ON-EX - HMO
  • Bronze Standard w/ Virtual & Wellness - HMO
  • Gold $1,000 w/ Adult Dental ON-EX - HMO
  • Gold $1,000 w/ Virtual & Wellness ON-EX - HMO
  • Gold $500 w/ Virtual & Wellness ON-EX - HMO
  • Gold Standard w/ Virtual & Wellness - HMO
  • Silver $5,000 w/ Adult Dental ON-EX - HMO
  • Silver $5,000 w/ Virtual & Wellness ON-EX - HMO
  • MyPriority Balanced Silver - HMO
  • MyPriority Premier Silver - HMO
  • MyPriority Standard Bronze - HMO
  • MyPriority Standard Bronze - Travel - HMO
  • MyPriority Standard Gold - HMO
  • MyPriority Standard Silver - HMO
  • MyPriority Standard Silver - Travel - HMO
  • MyPriority Value Bronze - HMO
  • MyPriority Value Bronze HSA - HMO

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Medicare Participation & PECOS Enrollment Status

Andrew Assenmacher 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.

Andrew Assenmacher 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: 1850523077

    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: I20161116000292, I20180906002349

    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

Provider Referred Orders for Durable Medical Equipment, Devices & Supplies

The following list reflects the services, supplies or durable medical equipment ordered by this provider to a DME supplier on behalf of patients. The information below is derived from Medicare claims data and reflects the BETOS category, HCPCS code information and the number times each service was submitted under the Medicare fee-for-service program.

Orthotic Devices

  • DME-Orthotic Devices (DF000N)

    Shoulder orthosis, acromio/clavicular (canvas and webbing type), prefabricated, off-the-shelf (HCPCS:L3670)

    1 DME suppliers used 12 Medicare Claims 12 Services Paid

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.

Anchoring of biceps tendon

Anchoring of the biceps tendon is a surgical procedure aimed at restoring stability to your arm. The surgeon secures your biceps tendon to the bone using special anchors, which helps to reduce pain and improve arm function.

This service was performed 14 times for 13 patients

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 43 times for 35 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 20 times for 19 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more

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 102 times for 80 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more

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.

This service was performed 119 times for 103 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 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 12 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 508 times for 48 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more

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 23 times for 23 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more

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 32 times for 32 patients

Partial removal of collar bone at shoulder using an endoscope

This procedure involves the partial removal of the collar bone at the shoulder using an endoscope, a tool with a light and camera. It's done to relieve pain or improve shoulder movement. The surgeon makes small incisions, then uses the endoscope to guide their work.

This service was performed 12 times for 12 patients

Prosthetic repair of shoulder joint, total shoulder

Total shoulder prosthetic repair is a surgical procedure to replace a damaged shoulder joint with artificial components. It aims to relieve pain and restore mobility. The procedure involves replacing the ball (humeral head) and socket (glenoid) of the shoulder joint.

This service was performed 17 times for 16 patients

Shaving of part of shoulder bone and repair of ligament using an endoscope

This procedure involves using a tiny camera, called an endoscope, to view and repair a damaged shoulder ligament. Simultaneously, a small portion of the shoulder bone is shaved to alleviate discomfort and improve movement. It's a minimally invasive technique that aids in a quicker recovery.

This service was performed 16 times for 16 patients

X-ray of knee, 1-2 views

An X-ray of the knee with 1-2 views is a quick, painless test that produces images of the knee bones. It helps identify fractures, infections, or changes in the knee joint. During the procedure, you'll be asked to stay still while the X-ray machine captures the images.

This service was performed 25 times for 13 patients

X-ray of knee, 4 or more views

An X-ray of the knee, 4 or more views, is a non-invasive imaging test. It involves capturing multiple images of your knee from different angles. This helps in diagnosing conditions such as fractures, arthritis, or infections. The procedure is quick and painless.

This service was performed 36 times for 31 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 130 times for 81 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 23 times for 15 patients

Find Provider Hospital Affiliations - Privileges

Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.

Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Andrew Assenmacher is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
PROMEDICA CHARLES AND VIRGINIA HICKMAN HOSPITAL5640 N ADRIAN HIGHWAY
ADRIAN, MI 49221
(517) 265-0900Acute Care Hospitals
PROMEDICA MONROE REGIONAL HOSPITAL718 N MACOMB ST
MONROE, MI 48162
(734) 240-8400Acute Care Hospitals
PROMEDICA TOLEDO HOSPITAL2142 NORTH COVE BOULEVARD
TOLEDO, OH 43606
(419) 291-7482Acute Care Hospitals
MERCY ST VINCENT MEDICAL CENTER2213 CHERRY STREET
TOLEDO, OH 43608
(419) 251-3232Acute Care Hospitals

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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 1578791240, we treat the final digit (0) 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 70. The final step is to find the difference between that total and the next multiple of ten (70 - 70 = 0).

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
5
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
8
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
9
Unchanged
Pos 7
1
Doubled → 2
Pos 8
2
Unchanged
Pos 9
4
Doubled → 8
Check
0
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 7 → 14 → 5 1 → 2 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 1 + 4 + 8 + 1 + 4 + 9 + 2 + 2 + 8 + 24 = 70

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

The next multiple of ten after 70 is 70. The difference is the calculated check digit.

70 - 70 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1578791240.

Other Providers at the Same Location


The following 9 providers are registered at the same or a nearby location.

Legal Medicine
1420 N MONROE ST
MONROE, MI 48162
Neurological Surgery
1420 N MONROE ST
MONROE, MI 48162
Physician Assistant
1420 N MONROE ST
MONROE, MI 48162
Nurse Practitioner (Family)
1420 N MONROE ST
MONROE, MI 48162
Orthopaedic Surgery
1420 N MONROE ST
MONROE, MI 48162
Orthopaedic Surgery
1420 N MONROE ST
MONROE, MI 48162
Physician Assistant
1420 N MONROE ST
MONROE, MI 48162
Orthopaedic Surgery
1420 N MONROE ST
MONROE, MI 48162
Physician Assistant
1420 N MONROE ST
MONROE, MI 48162

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1578791240, enumerated as an "individual" on July 01, 2009.

The provider is located at 1420 N MONROE ST MONROE, MI 48162 and the phone number is (734) 240-8480.

Orthopaedic Surgery with taxonomy code 207XX0005X and a focus in Sports Medicine.

The provider might be accepting Accepts: Anthem Blue Cross and Blue Shield, Blue Care. Please consult your insurance carrier or call the provider to verify.

Andrew Assenmacher is affiliated with: PROMEDICA CHARLES AND VIRGINIA HICKMAN HOSPITAL, PROMEDICA MONROE REGIONAL HOSPITAL, PROMEDICA TOLEDO HOSPITAL and MERCY ST VINCENT MEDICAL CENTER.