GEORGE S. HORNG MD
NPI 1306924972
Internal Medicine - Critical Care Medicine in San Francisco, CA


Quality Rating: 95.53 out of 100 score

NPI Status: Active since November 01, 2006

Contact Information

2351 CLAY ST
SUITE 501
SAN FRANCISCO, CA
ZIP 94115
Phone: (415) 923-3421

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  • Individual
  • Male
  • Years of Experience 25
  • Internal Medicine
  • Critical Care Medicine
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About GEORGE HORNG

This page provides the complete NPI Profile along with additional information for George Horng, an internist established in San Francisco, California with a medical specialization in Internal Medicine, focusing in critical care medicine and more than 25 years of experience. He graduated from University Of California, San Diego School Of Medicine in 2001. The healthcare provider is registered in the NPI registry with number 1306924972 assigned on November 2006. The practitioner's primary taxonomy code is 207RC0200X with license number A81295 (CA). The provider is registered as an individual and his NPI record was last updated 14 years ago.

NPI
1306924972
Provider Name
GEORGE S. HORNG MD
Gender
Male
Entity Type
Individual
Location Address
2351 CLAY ST SUITE 501 SAN FRANCISCO, CA 94115
Location Phone
(415) 923-3421
Mailing Address
2351 CLAY ST SUITE 501 SAN FRANCISCO, CA 94115
Mailing Phone
(415) 923-3421
Medical School Name
UNIVERSITY OF CALIFORNIA, SAN DIEGO SCHOOL OF MEDICINE
Graduation Year
2001
Is Sole Proprietor?
No
Enumeration Date
11-01-2006
Last Update Date
06-03-2011
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An internist like George Horng is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

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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

Internal Medicine Critical Care Medicine

Taxonomy Code
207RC0200X
Type
Allopathic & Osteopathic Physicians
License No.
A81295
License State
CA
Taxonomy Description
An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

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)
1207RP1001XAllopathic & Osteopathic Physicians

Internal Medicine
Pulmonary Disease

A81295 (CA)

Insurance Plans Accepted

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

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

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

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
00A812950MEDICARE ID-TYPE UNSPECIFIED (04) 

Medicare Participation & PECOS Enrollment Status

George Horng 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.

George Horng 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: 5496756843

    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: I20070126000621

    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 (DE005N)

    Home ventilator, any type, used with invasive interface, (e.g., tracheostomy tube) (HCPCS:E0465)

    1 DME suppliers used 13 Medicare Claims 25 Services Paid

  • DME-Other DME (DE005N)

    Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) (HCPCS:E0466)

    1 DME suppliers used 19 Medicare Claims 19 Services Paid

  • DME-Other DME (DE005N)

    Home ventilator, multi-function respiratory device, also performs any or all of the additional functions of oxygen concentration, drug nebulization, aspiration, and cough stimulation, includes all accessories, components and supplies for all functions (HCPCS:E0467)

    2 DME suppliers used 17 Medicare Claims 17 Services Paid

  • DME-Oxygen and Supplies (DC002N)

    Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate (HCPCS:E1390)

    5 DME suppliers used 77 Medicare Claims 77 Services Paid

  • DME-Oxygen and Supplies (DC002N)

    Portable oxygen concentrator, rental (HCPCS:E1392)

    2 DME suppliers used 35 Medicare Claims 35 Services Paid

  • DME-Oxygen and Supplies (DC000N)

    Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing (HCPCS:K0738)

    2 DME suppliers used 24 Medicare Claims 24 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.

Critical care, first 30-74 minutes

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

This service was performed 261 times for 143 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 171 times for 108 patients

Follow-up hospital inpatient care per day, typically 35 minutes

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

This service was performed 112 times for 69 patients

Initial hospital inpatient care per day, typically 50 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 29 times for 29 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 47 times for 47 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $38.45 for a new patient copayment and $29.87 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 94115 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $153.83
  • Minimum New Patient Price $69
  • Maximum New Patient Price $202.35
  • Average New Patient Copayment $38.45
  • Minimum New Patient Copayment $17.25
  • Maximum New Patient Copayment $50.58

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $119.48
  • Minimum Established Patient Price $23.44
  • Maximum Established Patient Price $166.46
  • Average Established Patient Copayment $29.87
  • Minimum Established Patient Copayment $5.86
  • Maximum Established Patient Copayment $41.61

* 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 95.53, 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: 95.53 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: 71.06

    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.

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NPI Validation Check Digit Calculation


The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1306924972
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
23061828914
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 3 + 0 + 6 + 1 + 8 + 2 + 8 + 9 + 1 + 4 + 24 = 68
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
70 - 68 = 22

The NPI number 1306924972 is valid because the calculated check digit 2 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


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

NPI Name / Type Taxonomy Address
1205824638TOM R NORRIS M D A PROFESSIONAL CORP
Organization
Orthopaedic Surgery2351 CLAY ST STE 510
SAN FRANCISCO, CA 94115
(415) 392-3225
1487674438MISS REBECCA GORDON PA-C
Individual
Physician Assistant (Medical)2351 CLAY ST 307A
SAN FRANCISCO, CA 94115
(415) 600-1112
1942317409 RYAN DOUGHERTY M.D.
Individual
Internal Medicine (Pulmonary Disease)2351 CLAY ST STE. 501
SAN FRANCISCO, CA 94115
(415) 923-3421
1881778686 NOREEN ROTH HENIG MD
Individual
Internal Medicine (Critical Care Medicine)2351 CLAY ST #501
SAN FRANCISCO, CA 94115
(415) 923-3421
1104900901MR. CHRISTOPHER REID BROWN MD
Individual
Internal Medicine (Pulmonary Disease)2351 CLAY ST 501
SAN FRANCISCO, CA 94115
(415) 923-3421
1023192101 LESTER B. JACOBSON M.D.
Individual
Internal Medicine (Cardiovascular Disease)2351 CLAY ST SUITE 513F
SAN FRANCISCO, CA 94115
(415) 923-3565
1215092705DR. TZE-MING CHEN M.D.
Individual
Internal Medicine (Pulmonary Disease)2351 CLAY ST SUITE 501
SAN FRANCISCO, CA 94115
(415) 923-3421
1376691394MRS. KATHERINE ANN COTTON PAC
Individual
Physician Assistant (Surgical)2351 CLAY ST
SAN FRANCISCO, CA 94115
(415) 600-1298
1275681785MR. BRIAN J WALSH PAC
Individual
Physician Assistant2351 CLAY ST
SAN FRANCISCO, CA 94115
(415) 600-6000
1689877250MS. LEAH SLATTERY M.S.
Individual
Genetic Counselor, MS2351 CLAY ST SUITE 513C
SAN FRANCISCO, CA 94115
(415) 600-5961
1376723429DR. TOM R NORRIS MD
Individual
Orthopaedic Surgery2351 CLAY ST 510
SAN FRANCISCO, CA 94115
(415) 392-3225
1568797751MS. ALEXANDRIA M YONKER CGC
Individual
Genetic Counselor, MS2351 CLAY ST SUITE 513C
SAN FRANCISCO, CA 94115
(415) 600-5961
1154645307 YILE DING M.D.
Individual
Hospitalist2351 CLAY ST SUITE 360
SAN FRANCISCO, CA 94115
(415) 204-5065
1043534944DR. KRISTINE HSIEH MD
Individual
Internal Medicine2351 CLAY ST SUITE 380
SAN FRANCISCO, CA 94115
(415) 600-6520
1306137708 GEOFFREY STUART BAILEY-GATES M.D.
Individual
Student in an Organized Health Care Education/Training Program2351 CLAY ST SUITE 380
SAN FRANCISCO, CA 94115
(415) 600-3954
1265798441 ROBERTA LYNN ZUCKER LCSW
Individual
Social Worker (Clinical)2351 CLAY ST 1ST FLOOR
SAN FRANCISCO, CA 94115
(415) 600-3604
1508940305MR. JAMES JOSEPH HERSHON MD
Individual
Internal Medicine (Critical Care Medicine)2351 CLAY ST # 501
SAN FRANCISCO, CA 94115
(415) 923-3421
1386987972DR. SALLY SCHNEIDER RYAN D.O.
Individual
Student in an Organized Health Care Education/Training Program2351 CLAY ST SUITE 380
SAN FRANCISCO, CA 94115
(415) 600-3954
1013358241 NEIL MALUSTE M.D.
Individual
Student in an Organized Health Care Education/Training Program2351 CLAY ST #S-380
SAN FRANCISCO, CA 94115
(310) 210-7650
1366768426DR. LINDA VU-HOLBROOK MD
Individual
Internal Medicine2351 CLAY ST SUITE 380
SAN FRANCISCO, CA 94115
(415) 600-6000

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1306924972, enumerated in the NPI registry as an "individual" on November 01, 2006

The provider is located at 2351 Clay St Suite 501 San Francisco, Ca 94115 and the phone number is (415) 923-3421

The provider's speciality is Internal Medicine with taxonomy code 207RC0200X with a focus in Critical Care Medicine

The provider has more than 25 years of experience. He graduated from University Of California, San Diego School Of Medicine in 2001.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.

Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary 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.

Medicare beneficiaries should expect a typical cost of $153.83 with an average copayment of $38.45 for new patient appointments. Established patients should expect a typical charge of $119.48 and an average copayment of 29.87. Please review your insurance plan or contact the provider directly to determine your specific costs.

The most common procedures or services performed by this practitioner are: Critical care, first 30-74 minutes, Established patient office or other outpatient visit, 30-39 minutes, Follow-up hospital inpatient care per day, typically 35 minutes, Initial hospital inpatient care per day, typically 50 minutes and New patient office or other outpatient visit, 45-59 minutes.

This NPI record was last updated on November 01, 2006. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
NPI Profile data is regularly updated with the latest NPI registry information, if you would like to update or remove your NPI Profile in this website please contact us.