DR. WALTER K NAHM M.D., PHD.
NPI 1467447284
Dermatology in San Diego, CA

Medicare Participation & PECOS Enrollment Status

Walter Nahm 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.

Walter Nahm 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: 2466352307

  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: I20040112000201

  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.

Durable Medical Equipment

• DME-Medical/Surgical Supplies (DA000N)

  Gradient compression wrap, non-elastic, below knee, 30-50 mm hg, each (HCPCS:A6545)

  1 DME suppliers used 16 Medicare Claims 32 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.

Affinity, per square centimeter

Affinity per square centimeter is a measure often used in medical research. It quantifies how strongly a substance binds to a specific target, like a drug to a receptor, on a microscopic area. This measure helps understand how effective a treatment could be.

This service was performed 1,383 times for 19 patients

Amnioexcel, amnioexcel plus or biodexcel, per square centimeter

AmnioExcel and BioDExel are advanced wound care products. They are derived from human amniotic membrane and fluid, known for their healing properties. These products help in wound management by promoting tissue growth, reducing inflammation, and preventing scarring.

This service was performed 3,651 times for 48 patients

Application of skin substitute graft to wound of face, scalp, eyelids, mouth, neck, ears, around eyes, genitals, hands, feet, fingers, or toes, 25.0 sq cm or less of wound 100.0 sq cm or less

This procedure involves applying a skin substitute graft to a wound that's 25.0 sq cm or less, located on areas such as the face, scalp, eyelids, mouth, neck, ears, around eyes, hands, feet, fingers, or toes. The graft aids in wound healing and tissue regeneration.

This service was performed 424 times for 56 patients

Application of skin substitute graft to wound of trunk, arms, or legs, 25.0 sq cm or less of wound 100.0 sq cm or less

This procedure involves applying a skin substitute graft to a wound on the trunk, arms, or legs. The graft, a lab-grown skin, is used to cover a wound area of 25.0 sq cm or less, within a total wound area of 100.0 sq cm or less. It aids in healing and regeneration.

This service was performed 510 times for 58 patients

Biopsy of ear

A biopsy of the ear is a medical procedure where a small sample of tissue is taken from your ear for examination. This helps doctors diagnose any abnormalities or diseases. It's a simple process, usually done under local anesthesia, and has minimal risks.

This service was performed 17 times for 12 patients

Biopsy of related skin growth, first growth

A biopsy of a skin growth involves taking a small sample of the growth to examine it under a microscope. This helps determine if the growth is harmful. The procedure is typically quick, with minimal discomfort. It's a crucial step in ensuring your skin's health.

This service was performed 62 times for 48 patients

Complicated or multiple drainage of skin abscess

This procedure involves draining one or more skin abscesses, which are pockets of pus that form due to an infection. The process includes making a small cut on the abscess, removing the pus, and cleaning the area to promote healing and prevent further infection.

This service was performed 29 times for 24 patients

Complicated or multiple drainage of skin abscess

This procedure involves draining one or more skin abscesses, which are pockets of pus that form due to an infection. The process includes making a small cut on the abscess, removing the pus, and cleaning the area to promote healing and prevent further infection.

This service was performed 33 times for 31 patients

Destruction of precancer skin growth, 15 or more growths

This procedure involves removing 15 or more precancerous skin growths to prevent them from developing into cancer. It's done using various methods like freezing, creams, or minor surgery. The goal is to protect your health by stopping cancer before it starts.

This service was performed 911 times for 346 patients

Destruction of skin growth, 15 or more growths

"Destruction of skin growth" refers to a procedure where unwanted skin growths, such as warts or moles, are removed. In this case, 15 or more growths are treated. Techniques may include freezing, burning, or laser therapy. It's a safe, quick process to improve skin health.

This service was performed 906 times for 346 patients

Epicord, per square centimeter

Epicord is a type of regenerative medicine treatment. It involves the use of cord tissue, rich in stem cells, to promote healing in various parts of the body. The measurement per square centimeter refers to the area of tissue used.

This service was performed 405 times for 13 patients

Epifix, per square centimeter

Epifix is an advanced wound care treatment, derived from human placental tissue. It helps to promote healing by providing a protective barrier and supplying growth factors. Each square centimeter refers to the size of the Epifix graft needed for your specific wound.

This service was performed 1,779 times for 49 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 197 times for 138 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 1,186 times for 363 patients

Incision biopsy, first skin growth

An incision biopsy involves taking a small sample of a skin growth for further examination. A local anesthetic is used to numb the area, then a portion of the growth is removed using a surgical knife. This helps identify the nature of the growth.

This service was performed 341 times for 178 patients

Injection into skin growth, more than 7 growths

This procedure involves injecting medication into multiple skin growths (more than 7) to either shrink them or eliminate them. It's a safe, minimally invasive method often used for benign growths. Comfort during the process is ensured.

This service was performed 66 times for 47 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 624 times for 47 patients

Melanoma (skin cancer) excision

Melanoma excision is a procedure where a surgeon removes melanoma, a type of skin cancer, and some surrounding healthy tissue. Local anesthesia is applied to numb the area. The goal is to completely remove the cancer and prevent its spread. Healing time varies.

This service was performed for 379 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 85 times for 85 patients

Pathology examination of specimen during surgery, first tissue block

A pathology examination during surgery involves the immediate analysis of a removed tissue sample. This helps the surgeon make decisions during your operation. The "first tissue block" refers to the initial sample examined. It's a vital step to ensure your health.

This service was performed 64 times for 50 patients

Pathology examination of tissue using a microscope, intermediate complexity

A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.

This service was performed 1,472 times for 291 patients

Preparation of skin graft site of face, scalp, eyelids, mouth, neck, ears, around eyes, genitals, hands, feet, fingers, or toes, 100.0 sq cm or 1% body area for infants and children, or less

This procedure involves preparing a specific area of your body, such as the face, scalp, neck, or extremities, for a skin graft. A skin graft is a surgical procedure where healthy skin is transferred to an area of the body that has lost skin. This preparation ensures the graft will take hold effectively.

This service was performed 424 times for 56 patients

Preparation of skin graft site of trunk, arms, or legs, 100.0 sq cm or 1% body area for infants and children, or less

This procedure involves preparing a specific area of the body (trunk, arms, or legs) for a skin graft. The area is cleaned and any dead tissue is removed to ensure a successful graft. The procedure covers an area of 100.0 sq cm or 1% of a child's body.

This service was performed 508 times for 58 patients

Punch biopsy, each additional skin growth

A punch biopsy is a procedure where a small, circular tool removes a sample of your skin growth. This allows for testing to identify the nature of the growth. If there are multiple growths, each additional one may also need a biopsy.

This service was performed 12 times for 11 patients

Punch biopsy, first skin growth

A punch biopsy is a procedure where a small, circular tool is used to remove a sample of skin tissue. This is usually done to test a skin growth for potential issues. You may feel a pinch, but discomfort is minimal. The area heals quickly.

This service was performed 15 times for 13 patients

Puraply am, per square centimeter

Puraply AM is a type of wound dressing applied to help heal complex wounds. It's made from a special material that helps control bacteria and promote healing. The size of the dressing is measured per square centimeter to fit the wound size.

This service was performed 1,631 times for 65 patients

Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks

This procedure involves the careful removal of a growth from the head, neck, hands, or feet. The removed tissue, divided into 1-5 blocks, is then examined under a microscope to study its characteristics and determine the nature of the growth.

This service was performed 113 times for 52 patients

Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks

This procedure involves the careful removal of abnormal growths from the head, neck, hands, or feet. The removed tissues, divided into 1-5 blocks, are then examined under a microscope to identify any irregularities. The process may be carried out in multiple stages for thorough examination.

This service was performed 66 times for 34 patients

Removal and microscopic exam of growth of trunk, arms, or legs, 1-5 tissue blocks

This procedure involves the removal of a growth from your trunk, arms, or legs. The removed tissue, divided into 1-5 blocks, is then examined under a microscope to identify any abnormalities. This helps in diagnosing and planning further treatment.

This service was performed 70 times for 33 patients

Removal and microscopic exam of growth of trunk, arms, or legs, each additional stage, 1-5 tissue blocks

This procedure involves removing growths from the trunk, arms, or legs. The removed tissues, divided into 1-5 blocks, are then examined under a microscope to identify any abnormalities. This aids in diagnosing and treating your condition effectively.

This service was performed 46 times for 25 patients

Repair of wound of eyelids, nose, ears, or lips by transferring skin, 10.0 sq cm or less

This procedure involves repairing a wound on the eyelids, nose, ears, or lips by moving a small piece of skin (10.0 sq cm or less) from one area to another. The goal is to heal the wound and restore the function and appearance of the affected area.

This service was performed 14 times for 14 patients

Repair of wound of eyelids, nose, ears, or lips by transferring skin, 10.1-30.0 sq cm

This procedure involves repairing a wound on the eyelids, nose, ears, or lips by transferring skin from another part of the body. The size of the skin transferred will be between 10.1 to 30.0 square centimeters. It is performed to restore function and appearance.

This service was performed 23 times for 16 patients

Repair of wound of forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, or feet by transferring skin, 10.0 sq cm or less

This procedure involves repairing a wound on various body parts by transferring skin from another area. The transferred skin, up to 10.0 sq cm, helps to cover the wound, promoting healing and reducing scarring. It's a common method for treating larger or deeper wounds.

This service was performed 29 times for 19 patients

Repair of wound of forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, or feet by transferring skin, 10.1-30.0 sq cm

This procedure involves repairing a wound on specified body areas by transferring skin from another part of the body. The transferred skin, measuring between 10.1 to 30.0 square cm, aids in healing the wound and restoring the skin's normal function.

This service was performed 193 times for 95 patients

Repair of wound of scalp, arms, or legs by transferring skin, 10.1-30.0 sq cm

This procedure involves repairing a wound on your scalp, arm, or leg by moving skin from another part of your body. The skin transferred will cover an area between 10.1 to 30.0 square cm. This helps promote healing and reduce scarring.

This service was performed 35 times for 24 patients

Repair of wound of trunk by transferring skin, 10.1-30.0 sq cm

This procedure involves treating a wound on the body by moving skin from one area to another. The transferred skin, ranging from 10.1-30.0 sq cm, helps cover and heal the wound. It's a common way to promote healing for large or deep wounds.

This service was performed 55 times for 40 patients

Shaving of skin growth of body, arms, or legs, 1.1-2.0 cm

This procedure involves the careful removal of a skin growth on your body, arms, or legs. The growth is between 1.1 and 2.0 cm. A special tool is used to shave off the growth, which is a quick and relatively painless process.

This service was performed 35 times for 26 patients

Shaving of skin growth of body, arms, or legs, more than 2.0 cm

This procedure involves the removal of a skin growth on your body, arms, or legs that is over 2.0 cm. A special tool is used to shave off the growth, often under local anesthesia. It's a routine, safe process to maintain skin health.

This service was performed 286 times for 177 patients

Shaving of skin growth of face, ears, eyelids, nose, lips, or mouth, 1.1-2.0 cm

This procedure involves the careful removal of a skin growth on the face, ears, eyelids, nose, lips, or mouth. The growth being treated is between 1.1 and 2.0 cm in size. The process is typically quick, with minimal discomfort, and aids in maintaining skin health.

This service was performed 27 times for 22 patients

Shaving of skin growth of face, ears, eyelids, nose, lips, or mouth, more than 2.0 cm

This procedure involves the careful removal of a skin growth on the face, ears, eyelids, nose, lips, or mouth that is larger than 2.0 cm. The process, known as shaving, is done under local anesthesia to ensure comfort. It's a common, safe procedure.

This service was performed 170 times for 102 patients

Shaving of skin growth of scalp, neck, hands, feet, or genitals, more than 2.0 cm

This procedure involves the careful removal of a skin growth larger than 2.0 cm, located on the scalp, neck, hands, or feet. The area is first numbed, then the growth is gently shaved off. This is a safe, routine process to ensure skin health.

This service was performed 116 times for 85 patients

Special stained specimen slides to identify organisms including interpretation and report

This service involves coloring specimen slides in a special way to help identify organisms. The colors make different parts of the organism stand out. Afterward, a detailed interpretation and report on the findings are provided.

This service was performed 24 times for 12 patients

Theraskin, per square centimeter

Theraskin is a type of skin graft used to treat wounds that aren't healing properly. It's made from human skin and helps promote your body's own healing process. This service is often measured per square centimeter, which refers to the size of the graft needed for your wound.

This service was performed 16,634 times for 72 patients

Tissue fungi or parasites

Tissue fungi or parasites refer to microorganisms that can infect various parts of the body. This may cause symptoms like fatigue, fever, and skin changes. Diagnosis involves testing samples from the affected area. Treatment often includes medication to eliminate the infection.

This service was performed 11 times for 11 patients

Treatment of inflammatory skin disease using laser, more than 500.0 sq cm

This treatment involves using laser technology to manage inflammatory skin conditions over a large area (more than 500.0 sq cm). The laser targets and treats the disease, reducing inflammation and promoting skin healing. This is a safe, non-invasive procedure.

This service was performed 592 times for 70 patients

Physician Visit Costs

The typical physician office visit costs for Medicare beneficiaries in this area are: $23.71 for a new patient copayment and $19.21 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 92123 ZIP code area.

* 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.

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 100, 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 provider also has detailed performance information the following quality measures: .

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: 100 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: 100

  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: 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 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: 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 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: N/A

  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: N/A

  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.

MIPS Quality Measures

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number

05D1042177

Facility Type

Physician Office

Certificate Effective Date

February 06, 2024

Certificate Expiration Date

February 05, 2026

Laboratory Director

WALTER K. NAHM MD

Certificate Type

Certificate of Compliance

Certificate Type Description

This CLIA certificate is issued to Walter Nahm after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements. This type of certificate is issued to laboratories that perform nonwaived (moderate and/or high complexity) testing.

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Frequently Asked Questions