DR. ANDREW PAUL GERKEN M.D.
NPI 1538105739
Orthopaedic Surgery - Foot and Ankle Surgery in Newport Beach, CA


Quality Rating: 83.64 out of 100 score

NPI Status: Active since June 22, 2006

Contact Information

22 CORPORATE PLAZA DR
NEWPORT BEACH, CA
ZIP 92660
Phone: (949) 722-7038

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NPPES record last updated: February 17, 2020. Verified against the NPPES registry weekly; last sync: July 12, 2026.

  • Individual
  • Male
  • Orthopaedic Surgery
  • Foot and Ankle Surgery

About ANDREW GERKEN

This page provides the complete NPI Profile along with additional information for Andrew Gerken, a provider established in Newport Beach, California with a medical specialization in Orthopaedic Surgery, focusing in foot and ankle surgery . The healthcare provider is registered in the NPI registry with number 1538105739 assigned on June 2006. The practitioner's primary taxonomy code is 207XX0004X with license number G73203 (CA). The provider is registered as an individual and his NPI record was last updated 6 years ago.

NPI
1538105739
Provider Name
DR. ANDREW PAUL GERKEN M.D.
Gender
Male
Entity Type
Individual
Location Address
22 CORPORATE PLAZA DR NEWPORT BEACH, CA 92660
Location Phone
(949) 722-7038
Mailing Address
22 CORPORATE PLAZA DR NEWPORT BEACH, CA 92660
Mailing Phone
(949) 722-7038
Is Sole Proprietor?
No
Enumeration Date
06-22-2006
Last Update Date
02-17-2020
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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 Foot and Ankle Surgery

Taxonomy Code
207XX0004X
Type
Allopathic & Osteopathic Physicians
License No.
G73203
License State
CA
Taxonomy Description
Recognized by several state medical boards as a fellowship subspecialty program of orthopaedic surgery, foot and ankle surgeons deal with adult reconstructive foot and ankle surgery, adult foot and ankle trauma, sports medicine foot and ankle, and children's foot and ankle reconstructive surgery.

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)
1207XX0005XAllopathic & Osteopathic Physicians

Orthopaedic Surgery
Sports Medicine

G73203 (CA)

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.

Application of short leg cast

The application of a short leg cast is a procedure to stabilize and support the lower leg or foot after an injury. A special material is wrapped around the leg, hardening to form a protective shell. This helps to keep the bones in place, reduce pain, and promote healing.

This service was performed 17 times for 13 patients

Aspiration and/or injection of fluid from medium joint

This procedure involves a needle being inserted into a medium-sized joint, such as a knee or shoulder, to remove (aspirate) excess fluid. Sometimes, medication may also be injected into the joint to reduce inflammation and pain.

This service was performed 91 times for 72 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 370 times for 273 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 282 times for 213 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 228 times for 82 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 177 times for 177 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 24 times for 24 patients

X-ray of ankle, 2 views

An X-ray of the ankle, 2 views, is a quick, painless test that produces images of the bones and joints in your ankle. Two different angles are used to provide a more complete picture. It helps detect fractures, sprains, arthritis, or other abnormalities. It's safe and typically takes only a few minutes.

This service was performed 69 times for 58 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 100 times for 73 patients

X-ray of foot, 2 views

An X-ray of the foot, 2 views, is a quick, painless test that produces images of the bones and structures inside your foot. Two different angles are used to provide a comprehensive view. This helps doctors diagnose fractures, infections, or other abnormalities.

This service was performed 115 times for 83 patients

X-ray of foot, minimum of 3 views

An X-ray of the foot, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones and tissues in your foot. This helps to identify fractures, infections, or other abnormalities. Multiple views ensure a comprehensive examination.

This service was performed 162 times for 127 patients

X-ray of heel, minimum of 2 views

An X-ray of the heel, minimum of 2 views, is a diagnostic procedure where safe radiation beams capture images of your heel from at least two different angles. This helps in identifying issues such as fractures, bone spurs, or arthritis. You'll remain still while the images are taken.

This service was performed 23 times for 19 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 83.64, 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: 83.64 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: 94.96

    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 comprises 40% of a provider's final MIPS score.

    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: N/A

    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 comprises 25% of a provider's final MIPS score.

    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: 40

    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 comprises 15% of a provider's final MIPS score.

    The Improvement measures aim to better patient engagement, patient safety and other areas of patient care. The Improvement Activities category comprises 15% of a provider's final MIPS score.

  • Cost Score: 54.73

    The Cost performance category assesses 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 comprises 20% of a provider's final MIPS score.

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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 1538105739, we treat the final digit (9) 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 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 9).

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
3
Doubled → 6
Pos 4
8
Unchanged
Pos 5
1
Doubled → 2
Pos 6
0
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
7
Unchanged
Pos 9
3
Doubled → 6
Check
9
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 3 → 6 1 → 2 5 → 10 → 1 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 6 + 8 + 2 + 0 + 1 + 0 + 7 + 6 + 24 = 61

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

The next multiple of ten after 61 is 70. The difference is the calculated check digit.

70 - 61 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1538105739.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Physician Assistant
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Specialist
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Registered Nurse (Registered Nurse First Assistant)
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Registered Nurse (Registered Nurse First Assistant)
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Physician Assistant (Medical)
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Physician Assistant (Surgical)
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Nurse Practitioner
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Physical Therapist (Orthopedic)
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Physical Therapist (Orthopedic)
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NEWPORT BEACH, CA 92660
Orthopaedic Surgery
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Physical Therapist
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Physical Therapist (Orthopedic)
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NEWPORT BEACH, CA 92660
Physician Assistant (Surgical)
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Orthopaedic Surgery (Adult Reconstructive Orthopaedic Surgery)
22 CORPORATE PLAZA DR
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Orthopaedic Surgery
22 CORPORATE PLAZA DR
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Emergency Medicine
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Physician Assistant
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Physical Therapist (Orthopedic)
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Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1538105739, enumerated as an "individual" on June 22, 2006.

The provider is located at 22 CORPORATE PLAZA DR NEWPORT BEACH, CA 92660 and the phone number is (949) 722-7038.

Orthopaedic Surgery with taxonomy code 207XX0004X and a focus in Foot and Ankle Surgery.