DR. MARK CLAYTON STAHL D.O.
NPI 1912932476
Allergy & Immunology in San Antonio, TX

NPI Status: Active since July 12, 2006

Contact Information

14615 SAN PEDRO AVE STE 250
SAN ANTONIO, TX
ZIP 78232
Phone: (210) 490-2051

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  • Individual
  • Male
  • Years of Experience 23
  • Allergy & Immunology
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled
  • Medicare Quality Reporting

About MARK STAHL

This page provides the complete NPI Profile along with additional information for Mark Stahl, a provider established in San Antonio, Texas with a medical specialization in Allergy & Immunology and more than 23 years of experience. He graduated from Michigan State University College Of Osteopathic Medicine in 2003. The healthcare provider is registered in the NPI registry with number 1912932476 assigned on July 2006. The practitioner's primary taxonomy code is 207K00000X with license number P9742 (TX). The provider is registered as an individual and his NPI record was last updated 5 years ago.

NPI
1912932476
Provider Name
DR. MARK CLAYTON STAHL D.O.
Gender
Male
Entity Type
Individual
Location Address
14615 SAN PEDRO AVE STE 250 SAN ANTONIO, TX 78232
Location Phone
(210) 490-2051
Mailing Address
14615 SAN PEDRO AVE STE 250 SAN ANTONIO, TX 78232
Mailing Phone
(210) 490-2051
Medical School Name
MICHIGAN STATE UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE
Graduation Year
2003
Is Sole Proprietor?
No
Enumeration Date
07-12-2006
Last Update Date
04-29-2021
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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

Allergy & Immunology

Taxonomy Code
207K00000X
Type
Allopathic & Osteopathic Physicians
License No.
P9742
License State
TX
Taxonomy Description
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.

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)
1208000000XAllopathic & Osteopathic Physicians

Pediatrics

34.010391 (OH)

Insurance Plans Accepted

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

  • Choice Bronze HSA - HMO
  • Choice Bronze HSA + Vision + Adult Dental - HMO
  • Complete Gold - HMO
  • Complete Gold + Vision + Adult Dental - HMO
  • Complete Silver - HMO
  • Complete Silver + Vision + Adult Dental - HMO
  • Elite Gold - HMO
  • Elite Gold + Vision + Adult Dental - HMO
  • Everyday Bronze - HMO
  • Everyday Bronze + Vision + Adult Dental - HMO
  • Choice Bronze HSA (QualChoice) - POS
  • Complete Gold - PPO
  • Complete Gold + Vision + Adult Dental - PPO
  • Connected Silver - PPO
  • Connected Silver (QualChoice) - POS
  • Connected Silver (QualChoice) + Vision + Adult Dental - POS
  • Connected Silver (QualChoiceLife) - PPO
  • Connected Silver (QualChoiceLife) + Vision + Adult Dental - PPO
  • Connected Silver + Vision + Adult Dental - PPO
  • Elite Bronze - PPO
  • Complete Gold - EPO
  • Complete Gold + Vision + Adult Dental - EPO
  • Elite Bronze - EPO
  • Elite Bronze + Vision + Adult Dental - EPO
  • Elite Gold - EPO
  • Elite Gold + Vision + Adult Dental - EPO
  • Everyday Bronze - EPO
  • Everyday Bronze + Vision + Adult Dental - EPO
  • Focused Silver - EPO
  • Focused Silver + Vision + Adult Dental - EPO
  • Complete Gold - EPO
  • Complete Gold + Vision + Adult Dental - EPO
  • Complete VALUE Gold - HMO
  • Enhanced Diabetes Care Silver with $0 Drug Options - EPO
  • Enhanced Diabetes Care Silver with $0 Drug Options + Vision + Adult Dental - EPO
  • Everyday Gold - EPO
  • Everyday Gold + Vision + Adult Dental - EPO
  • Focused Silver - EPO
  • Focused Silver + Vision + Adult Dental - EPO
  • Focused VALUE Silver - HMO
  • Clarity VALUE Silver - HMO
  • Complete VALUE Gold - HMO
  • Elite VALUE Bronze - HMO
  • Focused VALUE Silver - HMO
  • Standard Expanded Bronze VALUE - HMO
  • Standard Gold VALUE - HMO
  • Standard Silver VALUE - HMO
  • Elite Bronze - PPO
  • Elite Bronze + Vision + Adult Dental - PPO
  • Elite Gold - PPO
  • Elite Gold + Vision + Adult Dental - PPO
  • Enhanced Asthma/COPD Care Silver with $0 Drug Options - PPO
  • Enhanced Asthma/COPD Care Silver with $0 Drug Options + Vision + Adult Dental - PPO
  • Enhanced Diabetes Care Silver with $0 Drug Options - PPO
  • Enhanced Diabetes Care Silver with $0 Drug Options + Vision + Adult Dental - PPO
  • Everyday Bronze - PPO
  • Everyday Bronze + Vision + Adult Dental - PPO
  • Blue Advantage Bronze HMO? 204 - HMO
  • Blue Advantage Bronze HMO? 301 - HMO
  • Blue Advantage Bronze HMO? Standard - HMO
  • Blue Advantage Gold HMO? 206 - HMO
  • Blue Advantage Gold HMO? 603 - HMO
  • Blue Advantage Gold HMO? Standard - HMO
  • Blue Advantage Plus Bronze? 303 - POS
  • Blue Advantage Plus Bronze? 305 - POS
  • Blue Advantage Plus Bronze? Standard - POS
  • Blue Advantage Plus Gold? 203 - POS
  • Molina Gold Core 1640 - HMO
  • Molina Gold Core 1640 Plus with Adult Dental and Vision - HMO
  • Molina Gold Core 1640 Plus with Adult Vision - HMO
  • Molina Gold Saver 750 - HMO
  • Molina Gold Saver 750 Plus with Adult Dental and Vision - HMO
  • Molina Gold Saver 750 Plus with Adult Vision - HMO
  • Molina Gold Standard - HMO
  • Molina Silver Core - HMO
  • Molina Silver Core Plus with Adult Dental and Vision - HMO
  • Molina Silver Core Plus with Adult Vision - HMO
  • UHC Bronze Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care) - HMO
  • UHC Bronze Essential ($0 Virtual Urgent Care) - HMO
  • UHC Bronze Standard - HMO
  • UHC Bronze Standard+ (Dental + Vision) - HMO
  • UHC Gold Advantage ($0 Virtual Urgent Care, $8 Tier 2 Rx) - HMO
  • UHC Gold Advantage+ ($0 Virtual Urgent Care, $8 Tier 2 Rx, Dental + Vision) - HMO
  • UHC Gold Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, $8 Tier 2 Rx) - HMO
  • UHC Gold Copay Focus+ $0 Indiv Med Ded ($0 Virtual Urgent Care, $8 Tier 2 Rx, Dental + Vision) - HMO
  • UHC Gold Standard - HMO
  • UHC Silver Advantage ($0 Virtual Urgent Care, $5 Tier 2 Rx) - HMO

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

Medicare Participation & PECOS Enrollment Status

Mark Stahl 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.

Mark Stahl 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: 6800012543

    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: I20140801000460

    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-Other DME (DE017N)

    Supplies for maintenance of non-insulin drug infusion catheter, per week (list drugs separately) (HCPCS:A4221)

    1 DME suppliers used 13 Medicare Claims 20 Services Paid

  • DME-Other DME (DE000N)

    Supplies for external non-insulin drug infusion pump, syringe type cartridge, sterile, each (HCPCS:K0552)

    1 DME suppliers used 13 Medicare Claims 50 Services Paid

Unknown

  • Treatment-Injections and Infusions (nononcologic) (RI008N)

    Injection, immune globulin (cuvitru), 100 mg (HCPCS:J1555)

    1 DME suppliers used 13 Medicare Claims 6000 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.

Administration and interpretation of patient-focused health risk assessment

This procedure involves a detailed evaluation of your health to identify potential risks. It includes analyzing your medical history, lifestyle habits, and family health history. The results are interpreted to provide a personalized plan to improve your health and prevent future issues.

This service was performed 25 times for 19 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 50 times for 38 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 65 times for 40 patients

Injection of drug or substance under skin or into muscle

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

This service was performed 16 times for 11 patients

Injection, dexamethasone sodium phosphate, 1 mg

Dexamethasone sodium phosphate is a medication given via injection. It is a type of steroid that helps reduce inflammation and immune responses. It can be used to treat a variety of conditions, such as allergies, skin conditions, arthritis, and more.

This service was performed 104 times 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 28 times for 28 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 21 times for 21 patients

Professional service for multiple injections of allergen

The professional service for multiple injections of allergens involves administering small doses of specific allergens into your body. This is done to help your immune system become less sensitive to them, reducing your allergic reaction over time. It's a safe, effective way to manage allergies.

This service was performed 1,134 times for 51 patients

Professional service for preparation and provision of 1 or more antigens

This service involves the creation and supply of antigens, substances that stimulate your immune system to fight diseases. These antigens can be used in vaccines or allergy tests to help your body build defenses against specific health threats.

This service was performed 2,458 times for 52 patients

Test for allergy using allergenic extract

An allergy test with allergenic extract is a diagnostic method to identify substances causing allergic reactions. Small amounts of common allergens are introduced to your body, usually through skin pricks or blood tests. Your body's response helps determine your allergies.

This service was performed 1,920 times for 30 patients

Test to measure rate of airflow

This test, known as spirometry, measures how much air you can breathe in and out, and how quickly you can do so. It helps assess your lung function and can be used to diagnose or monitor conditions like asthma or COPD.

This service was performed 90 times for 35 patients

Quality Reporting

The provider participated in CMS Quality Payment Program. The Quality Payment Program aims to improve population health, reduce costs and improve the care received by Medicare beneficiaries. The following quality measures meet Medicare's statistical reporting standards. Not all providers report the same information, because not all providers give the same services to patients. The quality information is just a snapshot of some the care providers give to their patients. Reporting more or less information is not a reflection of quality.

Quality Measure Performance Number of Patients
Chronic Care and Preventative Care Management for Empaneled PatientsYesN/A
Proactively manage chronic and preventive care for empaneled patients that could include one or more of the following: • Provide patients annually with an opportunity for development and/or adjustment of an individualized plan of care as appropriate to age and health status, including health risk appraisal; gender, age and condition-specific preventive care services; and plan of care for chronic conditions; • Use condition-specific pathways for care of chronic conditions (e.g., hypertension, diabetes, depression, asthma and heart failure) with evidence-based protocols to guide treatment to target; such as a CDC-recognized diabetes prevention program; • Use pre-visit planning to optimize preventive care and team management of patients with chronic conditions; • Use panel support tools (registry functionality) to identify services due; • Use predictive analytical models to predict risk, onset and progression of chronic diseases; or • Use reminders and outreach (e.g., phone calls, emails, postcards, patient portals and community health workers where available) to alert and educate patients about services due; and/or routine medication reconciliation.
Implementation of medication management practice improvementsYesN/A
Manage medications to maximize efficiency, effectiveness and safety that could include one or more of the following: Reconcile and coordinate medications and provide medication management across transitions of care settings and eligible clinicians or groups; Integrate a pharmacist into the care team; and/or Conduct periodic, structured medication reviews.
Measurement and Improvement at the Practice and Panel LevelYesN/A
Measure and improve quality at the practice and panel level, such as the American Board of Orthopaedic Surgery (ABOS) Physician Scorecards, that could include one or more of the following: • Regularly review measures of quality, utilization, patient satisfaction and other measures that may be useful at the practice level and at the level of the care team or MIPS eligible clinician or group (panel); and/or • Use relevant data sources to create benchmarks and goals for performance at the practice level and panel level.
Use of decision support and standardized treatment protocolsYesN/A
Use decision support and standardized treatment protocols to manage workflow in the team to meet patient needs.

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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 1912932476, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

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
9
Unchanged
Pos 3
1
Doubled → 2
Pos 4
2
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
3
Unchanged
Pos 7
2
Doubled → 4
Pos 8
4
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
6
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 1 → 2 9 → 18 → 9 2 → 4 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 2 + 2 + 1 + 8 + 3 + 4 + 4 + 1 + 4 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1912932476.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Allergy & Immunology
14615 SAN PEDRO AVE STE 250
SAN ANTONIO, TX 78232
Allergy & Immunology (Allergy)
14615 SAN PEDRO AVE STE 250
SAN ANTONIO, TX 78232
Allergy & Immunology
14615 SAN PEDRO AVE STE 250
SAN ANTONIO, TX 78232

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1912932476, enumerated as an "individual" on July 12, 2006.

The provider is located at 14615 SAN PEDRO AVE STE 250 SAN ANTONIO, TX 78232 and the phone number is (210) 490-2051.

Allergy & Immunology with taxonomy code 207K00000X.

The provider might be accepting Accepts: Ambetter from Arizona Complete Health, Ambetter. Please consult your insurance carrier or call the provider to verify.