DR. NATHAN ROSS EHMER D.O.
NPI 1871767673
Orthopaedic Surgery - Orthopaedic Trauma in Redding, CA


Quality Rating: 29.84 out of 100 score

NPI Status: Active since April 14, 2008

Contact Information

2510 AIRPARK DR STE 301
REDDING, CA
ZIP 96001
Phone: (530) 242-3500
Fax: (530) 242-3546

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  • Individual
  • Male
  • Years of Experience 23
  • Orthopaedic Surgery
  • Orthopaedic Trauma
  • May Accept Medicare Approved Payment
  • PECOS Enrolled

About NATHAN EHMER

This page provides the complete NPI Profile along with additional information for Nathan Ehmer, a provider established in Redding, California with a medical specialization in Orthopaedic Surgery, focusing in orthopaedic trauma and more than 23 years of experience. He graduated from Arizona College Of Osteopathic Medicine Mid Western University in 2003. The healthcare provider is registered in the NPI registry with number 1871767673 assigned on April 2008. The practitioner's primary taxonomy code is 207XX0801X with license number 20A 10366 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1871767673
Provider Name
DR. NATHAN ROSS EHMER D.O.
Gender
Male
Entity Type
Individual
Location Address
2510 AIRPARK DR STE 301 REDDING, CA 96001
Location Phone
(530) 242-3500
Location Fax
(530) 242-3546
Mailing Address
3400 DATA DR RANCHO CORDOVA, CA 95670
Medical School Name
ARIZONA COLLEGE OF OSTEOPATHIC MEDICINE MID WESTERN UNIVERSITY
Graduation Year
2003
Is Sole Proprietor?
No
Enumeration Date
04-14-2008
Last Update Date
08-04-2025
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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 Orthopaedic Trauma

Taxonomy Code
207XX0801X
Type
Allopathic & Osteopathic Physicians
License No.
20A 10366
License State
CA
Taxonomy Description
Recognized by several state medical boards as a fellowship subspecialty program of orthopaedic surgery, orthopaedic trauma surgeons deal with the evaluation and management of acute orthopaedic injuries, evaluation and treatment of post-traumatic deformities and nonunions, acute and delayed reconstruction of pelvic and acetabular fractures, as well as osteotomy in the adult hip for treatment of hip arthritis.

Medicare Participation & PECOS Enrollment Status

Nathan Ehmer is registered with Medicare but maybe doesn't accept claims assignment. If you are a Medicare beneficiary call and confirm with the provider before seeking any services.

Nathan Ehmer 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: 8628127511

    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: I20090526000270

    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? Maybe

    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)

    Wrist hand orthosis, wrist extension control cock-up, non molded, prefabricated, off-the-shelf (HCPCS:L3908)

    1 DME suppliers used 20 Medicare Claims 21 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.

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 12 times for 12 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 165 times for 110 patients

Established patient office or other outpatient visit, 30-39 minutes

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 83 times for 78 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

Initial hospital inpatient care per day, typically 70 minutes

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

This service was performed 103 times for 102 patients

Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg

This injection contains two medications, betamethasone acetate and betamethasone sodium phosphate. It is used to reduce inflammation and pain. It's given by a healthcare professional, often directly into the area causing discomfort.

This service was performed 58 times for 12 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 60 times for 60 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 17 times for 17 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 25 times for 24 patients

Treatment of upper end of broken thigh bone with placement of stabilizing device or prosthetic replacement

This procedure involves treating a fracture at the top of your thigh bone. A stabilizing device or prosthetic replacement is placed to aid in healing. This helps restore mobility and function while reducing pain. The treatment aims for a quick and safe recovery.

This service was performed 23 times for 23 patients

X-ray of ankle, minimum of 3 views

An ankle X-ray is a quick, painless imaging test. It involves capturing at least three different images or 'views' of your ankle using small amounts of radiation. These images help identify any abnormalities or injuries, such as fractures or arthritis.

This service was performed 25 times for 14 patients

X-ray of elbow, minimum of 3 views

An elbow X-ray with a minimum of 3 views is a non-invasive imaging test. It helps visualize the bones of the elbow from different angles. This aids in diagnosing conditions like fractures or arthritis. The procedure is quick, painless, and usually takes around 15 minutes.

This service was performed 41 times for 20 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 117 times for 89 patients

X-ray of hip, minimum of 4 views

An X-ray of the hip with a minimum of 4 views is a non-invasive procedure that uses a small amount of radiation to produce images of the hip joint from different angles. This helps to diagnose conditions such as fractures, arthritis, or other abnormalities. It's a quick, painless process.

This service was performed 18 times for 18 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 21 times for 20 patients

X-ray of pelvis, 1-2 views

An X-ray of the pelvis, 1-2 views, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the lower part of your torso. These images help to detect any abnormalities or injuries in your hip bones and surrounding structures.

This service was performed 27 times for 22 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 29 times for 16 patients

X-ray of wrist, 2 views

An X-ray of the wrist, 2 views, is a diagnostic procedure where two different images of your wrist are taken using a small amount of radiation. This helps identify any abnormalities or injuries such as fractures or arthritis. It's a quick, non-invasive process.

This service was performed 69 times for 31 patients

Overall MIPS Quality Performance

The provider participated in CMS Quality Payment Program under the Merit-based Incentive Payment System (MIPS) and has an overall final score of 29.84, based on four performance areas: quality, improvement activities, promoting interoperability, and cost. The purpose of this information is to help people with Medicare make informed decisions and incentivize doctors and clinicians to maximize performance.

The Merit-based Incentive Payment System (MIPS) is a way providers could use to participate in CMS Quality Payment Program (QPP). The MIPS program affects clinician reimbursement for Part B covered professional services and also rewards them for improving the quality of patient care and outcomes.

  • Final Score: 29.84 out of 100

    The MIPS program evaluates providers across multiple categories with a specific weight for each category resulting a in a MIPS final score that ranges from 0 to 100 points. The MIPS Final Score determines whether providers receive a negative, neutral or positive MIPS payment adjustment.

  • Quality Score: 0

    The Quality category assesses providers performance on clinical practices and patient outcomes under the traditional MIPS program. The quality measures help identify the quality of healthcare processes, outcomes, and patient experiences. The Quality measure category compromises 40% providers final MPIS scores.

    There are six collection types for MIPS quality measures: Electronic Clinical Quality Measures (eCQMs), MIPS Clinical Quality Measures (CQMs), Qualified Clinical Data Registry (QCDR) Measures, Medicare Part B claims measures, CMS Web Interface measures and The Consumer Assessment of Healthcare Providers and Systems (CAHPS) for MIPS Survey.

  • Promoting Interoperability Score: 0

    The Interoperability category measures the providers ability to use technology to exchange and make use of healthcare information in a way that is less burdensome and improves outcomes. The Interoperability measure category compromises 25% providers final MPIS scores.

    The MIPS Interoperability measure focuses on the use of certified electronic health record technology (CEHRT) to improve patient access health information, the exchange of information between clinicians and pharmacies and the systematic collection, analysis, and interpretation of healthcare data.

  • Improvement Activities Score: 0

    The Improvement Activities performance category evaluates the providers participation in clinical activities that support the improvement of clinical practice, care delivery, and outcomes. Providers have the option to choose 2 to 4 activities from an inventory of over 100 improvement activities. Providers typically choose the activities that best fit their needs. The improvement activities measure category compromises 15% providers final MPIS scores.

    The Improvement measures aim to better patient engagement, patient safety and other areas of patient care. The Improvement Activities category compromises 15% of providers final MPIS scores.

  • Cost Score: 99.47

    The Cost performance category asses the amount and types of services provided and how clinicians coordinate care and seek improvement of health outcomes by ensuring patients receive the appropriate services.

    Although providers don't determine the price of healthcare services they are important in delivering high-quality care at a reasonable cost. The Cost measures category compromises 20% of providers final MPIS scores.

  • Cost Score: 99.47

    The Cost performance category asses the amount and types of services provided and how clinicians coordinate care and seek improvement of health outcomes by ensuring patients receive the appropriate services.

    Although providers don't determine the price of healthcare services they are important in delivering high-quality care at a reasonable cost. The Cost measures category compromises 20% of providers final MPIS scores.

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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 1871767673, we treat the final digit (3) 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 3).

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

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 4 + 1 + 1 + 4 + 6 + 1 + 4 + 6 + 1 + 4 + 24 = 67

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

The next multiple of ten after 67 is 70. The difference is the calculated check digit.

70 - 67 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1871767673.

Other Providers at the Same Location


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

Otolaryngology
2510 AIRPARK DR STE 301
REDDING, CA 96001
Orthopaedic Surgery
2510 AIRPARK DR STE 301
REDDING, CA 96001
Physician Assistant (Medical)
2510 AIRPARK DR STE 301
REDDING, CA 96001
Physician Assistant
2510 AIRPARK DR STE 301
REDDING, CA 96001
Clinic/Center (Multi-Specialty)
2510 AIRPARK DR STE 301
REDDING, CA 96001
Nurse Practitioner
2510 AIRPARK DR STE 301
REDDING, CA 96001
Orthopaedic Surgery
2510 AIRPARK DR STE 301
REDDING, CA 96001
Orthopaedic Surgery
2510 AIRPARK DR STE 301
REDDING, CA 96001
Physician Assistant (Surgical)
2510 AIRPARK DR STE 301
REDDING, CA 96001

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1871767673, enumerated as an "individual" on April 14, 2008.

The provider is located at 2510 AIRPARK DR STE 301 REDDING, CA 96001 and the phone number is (530) 242-3500.

Orthopaedic Surgery with taxonomy code 207XX0801X and a focus in Orthopaedic Trauma.