DR. CHENG-HUAI RUAN M.D.
NPI 1629210927
Internal Medicine in Houston, TX

NPI Status: Active since April 01, 2009

Contact Information

333 WEST LOOP N STE 250
HOUSTON, TX
ZIP 77024
Phone: (713) 690-1991
Fax: (713) 690-1980

Get Directions Write a Review

  • Individual
  • Male
  • Years of Experience 18
  • Internal Medicine
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About CHENG-HUAI RUAN

This page provides the complete NPI Profile along with additional information for Cheng-huai Ruan, an internist established in Houston, Texas with a medical specialization in Internal Medicine and more than 18 years of experience. The healthcare provider is registered in the NPI registry with number 1629210927 assigned on April 2009. The practitioner's primary taxonomy code is 207R00000X with license number P5884 (TX). The provider is registered as an individual and his NPI record was last updated 5 years ago.

NPI
1629210927
Provider Name
DR. CHENG-HUAI RUAN M.D.
Other Name
DR. CHENG RUAN M.D.
Other Name Type
Other Name (5)
Gender
Male
Entity Type
Individual
Location Address
333 WEST LOOP N STE 250 HOUSTON, TX 77024
Location Phone
(713) 690-1991
Location Fax
(713) 690-1980
Mailing Address
333 WEST LOOP N STE 250 HOUSTON, TX 77024
Mailing Phone
(713) 690-1991
Mailing Fax
(713) 690-1980
Medical School Name
OTHER
Graduation Year
2009
Is Sole Proprietor?
No
Enumeration Date
04-01-2009
Last Update Date
03-22-2021
Code Navigator

An internist like Cheng-huai Ruan 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.

Location Map

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

Taxonomy Code
207R00000X
Type
Allopathic & Osteopathic Physicians
License No.
P5884
License State
TX
Taxonomy Description
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Insurance Plans Accepted

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

  • 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
  • Blue Advantage Plus Gold? 803 - POS
  • Blue Advantage Plus Gold? Standard - POS
  • Blue Advantage Plus Silver? 202 - POS
  • Blue Advantage Plus Silver? 605 - POS
  • Blue Advantage Plus Silver? Standard - POS
  • Blue Advantage Security HMO? 200 - HMO
  • Blue Advantage Silver HMO? 205 - HMO
  • Blue Advantage Silver HMO? 801 - HMO
  • Blue Advantage Silver HMO? Standard - HMO
  • Community Premier Bronze 003 (No deductible for PCP, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) - HMO
  • Community Premier Bronze 018 (No deductible for PCP, Specialist, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) - HMO
  • Community Premier Gold 005 (No deductible for PCP, Specialist, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) - HMO
  • Community Premier Gold 021 (No deductible for PCP, Specialist, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) - HMO
  • Community Premier Silver 012 (No deductible for PCP, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) - HMO
  • Community Premier Silver 020 (No deductible for PCP, Specialist, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) - HMO
  • Community Select Bronze 016 (No deductible for PCP, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) - HMO
  • Community Select Gold 022 (No deductible for PCP, Specialist, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) - HMO
  • Community Select Silver 019 (No deductible for PCP, Specialist, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) - HMO

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

Medicare Participation & PECOS Enrollment Status

Cheng-huai Ruan 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.

Cheng-huai Ruan 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: 5395996151

    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: I20130912000376

    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 (DE001N)

    Tubing with integrated heating element for use with positive airway pressure device (HCPCS:A4604)

    3 DME suppliers used 26 Medicare Claims 26 Services Paid

  • DME-Other DME (DE001N)

    Full face mask used with positive airway pressure device, each (HCPCS:A7030)

    3 DME suppliers used 23 Medicare Claims 23 Services Paid

  • DME-Other DME (DE001N)

    Face mask interface, replacement for full face mask, each (HCPCS:A7031)

    3 DME suppliers used 21 Medicare Claims 63 Services Paid

  • DME-Other DME (DE001N)

    Cushion for use on nasal mask interface, replacement only, each (HCPCS:A7032)

    4 DME suppliers used 22 Medicare Claims 132 Services Paid

  • DME-Other DME (DE001N)

    Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap (HCPCS:A7034)

    5 DME suppliers used 29 Medicare Claims 29 Services Paid

  • DME-Other DME (DE001N)

    Headgear used with positive airway pressure device (HCPCS:A7035)

    4 DME suppliers used 29 Medicare Claims 29 Services Paid

  • DME-Other DME (DE001N)

    Tubing used with positive airway pressure device (HCPCS:A7037)

    1 DME suppliers used 22 Medicare Claims 22 Services Paid

  • DME-Other DME (DE001N)

    Filter, disposable, used with positive airway pressure device (HCPCS:A7038)

    4 DME suppliers used 52 Medicare Claims 300 Services Paid

  • DME-Other DME (DE001N)

    Water chamber for humidifier, used with positive airway pressure device, replacement, each (HCPCS:A7046)

    3 DME suppliers used 18 Medicare Claims 18 Services Paid

  • DME-Other DME (DE001N)

    Continuous positive airway pressure (cpap) device (HCPCS:E0601)

    4 DME suppliers used 43 Medicare Claims 43 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 of psychological or neuropsychological test by technician, first 30 minutes

This procedure involves a trained technician administering a psychological or neuropsychological test. It's a process that assesses your mental function and behavior. The initial session will last 30 minutes. The aim is to understand your cognitive abilities better.

This service was performed 325 times for 19 patients

Administration of psychological or neuropsychological test, first 30 minutes

This procedure involves a health professional conducting a psychological or neuropsychological test. The first 30 minutes typically involve understanding your mental health or brain function through various assessments. This helps in diagnosing and treating mental health disorders effectively.

This service was performed 36 times for 15 patients

Annual depression screening, 15 minutes

An annual depression screening is a short, routine evaluation to check for signs of depression. It involves answering a series of questions about your feelings, thoughts, and behaviors. The process takes about 15 minutes and helps detect depression early for better management.

This service was performed 12 times for 12 patients

Assessment of health behavior

Assessment of health behavior is a process where your daily habits and lifestyle choices are evaluated. This includes your diet, exercise, sleep patterns, and stress management. The goal is to identify areas for improvement and develop strategies for healthier habits.

This service was performed 203 times for 54 patients

Brief communication technology-based service, e.g. virtual check-in, by a physician or other qualified health care professional who can report evaluation and management services, provided to an established patient, not originating from a related e/m servic

A virtual check-in is a short, technology-based service provided by a health professional to an existing patient. It's not linked to any other service. It involves discussing your health concerns and managing them. This service is convenient and saves time, as it's done remotely.

This service was performed 350 times for 17 patients

Brief communication technology-based service, e.g. virtual check-in, by a qualified health care professional who cannot report evaluation and management services, provided to an established patient, not originating from a related service provided within th

A virtual check-in is a short, technology-based service provided by a healthcare professional. It's for existing patients and isn't linked to any other service given within the same period. It allows for quick health consultations without the need for a physical visit, offering convenience and accessibility.

This service was performed 59 times for 37 patients

Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month

Chronic Care Management services involve regular check-ins with healthcare professionals to manage two or more chronic conditions. It includes an additional 20 minutes of clinical staff time per month, directed by a healthcare professional, to ensure optimal health management.

This service was performed 58 times for 27 patients

Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month

Chronic care management services involve a healthcare professional directing clinical staff in managing your chronic conditions. This includes the first 20 minutes per month of services like medication management, care coordination, and health monitoring to help improve your health and quality of life.

This service was performed 145 times for 33 patients

Electrocardiogram (ecg) 1 to 3 leads with review by physician

An Electrocardiogram (ECG) is a non-invasive test that records the electrical activity of your heart. It uses 1 to 3 leads (sensors) placed on your skin. A physician reviews the results to assess heart rate, rhythm, and detect any abnormalities.

This service was performed 59 times for 40 patients

Established patient office or other outpatient visit, 10-19 minutes

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

This service was performed 69 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 43 times for 29 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 559 times for 150 patients

Established patient office or other outpatient visit, 40-54 minutes

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

This service was performed 273 times for 110 patients

Evaluation of brain response to sound for determination of hearing threshold with interpretation and report

This procedure tests how your brain responds to sound to determine your hearing ability. Sounds are played and your brain's responses are recorded and analyzed. This helps identify any hearing issues you may have.

This service was performed 56 times for 45 patients

Evaluation of neuropsychological test, first hour

An evaluation of neuropsychological tests is a process to assess your brain's function. It involves tasks designed to measure cognitive abilities such as memory, attention, problem-solving, and language skills. The first hour involves initial testing and observation.

This service was performed 24 times for 22 patients

Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less

This is a procedure where a medical professional inserts a small tube into your vein to deliver medication, nutrients, or fluids directly into your bloodstream. This can be for treatment, prevention, or diagnosis. The process typically takes less than an hour.

This service was performed 304 times for 38 patients

Infusion, normal saline solution , 1000 cc

An infusion of normal saline solution, 1000 cc, is a common medical procedure. It involves introducing a saltwater solution into your bloodstream via an intravenous (IV) line. This helps to hydrate your body, correct electrolyte imbalances, and deliver medications if needed.

This service was performed 110 times for 16 patients

Injection of additional new drug or substance into vein

This procedure involves introducing a new medication or substance into your bloodstream via a vein. It's typically done using a small needle. The substance can help treat various conditions or assist in diagnostic procedures. It's generally safe and monitored by professionals.

This service was performed 223 times for 26 patients

Injection, magnesium sulfate, per 500 mg

Magnesium sulfate injection, per 500 mg, is a medication administered to manage certain health conditions. It aids in controlling seizures in conditions like eclampsia and in managing severe asthma attacks. It's also used to prevent premature labor in pregnant women.

This service was performed 1,054 times for 32 patients

Injection, pyridoxine hcl, 100 mg

Pyridoxine HCL, also known as Vitamin B6, is administered through an injection, typically for those with a deficiency. This vitamin helps the body produce proteins, hormones, and neurotransmitters. It can also support brain development and function.

This service was performed 136 times for 19 patients

Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg

This is a procedure where a small dose of Vitamin B-12, also known as Cyanocobalamin, is injected into your body. This vitamin is essential for nerve function and the production of red blood cells. It's often used to treat vitamin B-12 deficiency.

This service was performed 220 times for 28 patients

Management using the results of remote vital sign monitoring per calendar month, first 20 minutes

This service involves reviewing and managing your health data, which is remotely monitored and collected. Your vital signs like heart rate and blood pressure are tracked regularly throughout the month. The first 20 minutes of this data analysis per month is included in this service.

This service was performed 60 times for 14 patients

Measurement of brain wave activity (eeg), awake and drowsy

Measurement of brain wave activity, also known as an EEG, is a non-invasive test that records electrical patterns in your brain. This procedure is done when you're awake and drowsy to understand how your brain functions during different states of consciousness.

This service was performed 69 times for 50 patients

Measurement of brain wave activity (eeg), digital analysis

The measurement of brain wave activity, or EEG, involves recording and analyzing electrical signals from your brain. Small sensors are placed on the scalp to capture these signals. This digital analysis helps in diagnosing conditions like epilepsy or sleep disorders.

This service was performed 54 times for 39 patients

Measurement of nerve conduction using visual stimulation testing with report

This procedure involves testing the speed and strength of signals traveling through your nerves, using visual stimuli. It helps identify any nerve damage or dysfunction. A report of the results is provided for further analysis.

This service was performed 65 times for 50 patients

New patient office or other outpatient visit, 60-74 minutes

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

This service was performed 12 times for 12 patients

Online digital evaluation and management service for an established patient for up to 7 days, total time 5-10 minutes

This service involves a week-long digital assessment of your health status. It's conducted online by your healthcare provider, focusing on managing your existing health condition. The process takes 5-10 minutes of your time daily, ensuring optimal health management.

This service was performed 26 times for 20 patients

Other diagnostic neurological or neuromuscular procedure

This procedure involves examining your nervous system to detect any abnormalities. It may include tests like an EEG (measures brain waves), EMG (assesses muscle health), or nerve conduction studies. These tests help in diagnosing conditions such as epilepsy, muscle disorders, or nerve damage.

This service was performed 22 times for 22 patients

Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or

This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.

This service was performed 69 times for 41 patients

Remote assessment of recorded video and/or images submitted by an established patient (e.g., store and forward), including interpretation with follow-up with the patient within 24 business hours, not originating from a related service provided within the p

This is a service where established patients submit video or images for remote assessment. A medical professional interprets these and follows up with the patient within 24 hours. This isn't linked to services provided within the previous week.

This service was performed 346 times for 14 patients

Remote monitoring of physiologic parameters, initial set-up and patient education on use of equipment

Remote monitoring of physiologic parameters involves using special equipment to track vital signs like heart rate and blood pressure from a distance. The initial set-up includes installing the device and teaching the patient how to use it correctly for accurate readings.

This service was performed 14 times for 13 patients

Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days

This service involves using devices to remotely track body functions like heart rate or blood pressure. These devices, provided initially, record data daily or send alerts if readings are abnormal. The service is renewed every 30 days.

This service was performed 53 times for 13 patients

Telephone medical discussion with physician, 21-30 minutes

This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.

This service was performed 20 times for 17 patients

Treatment of behavior impacting health, each additional 15 minutes

This procedure involves therapeutic interventions to help manage behaviors that may negatively affect your health. Each additional 15-minute session is designed to further assist in developing healthier habits and coping mechanisms.

This service was performed 127 times for 23 patients

Treatment of behavior impacting health, initial 30 minutes

This service involves a healthcare professional working with you for 30 minutes to address behaviors that are negatively affecting your health. They will help you understand and modify these behaviors, improving your overall well-being.

This service was performed 86 times for 24 patients

Unclassified drugs

Unclassified drugs are medications that don't fit into an existing category or class due to their unique properties or uses. They may be used for various conditions and their effects may differ widely. Always ask your healthcare provider for more information about these drugs.

This service was performed 185 times for 22 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $33.51 for a new patient copayment and $25.67 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 77024 ZIP code area.

New Patients Visit Costs *

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

  • Average New Patient Price $134.06
  • Minimum New Patient Price $58.24
  • Maximum New Patient Price $176.98
  • Average New Patient Copayment $33.51
  • Minimum New Patient Copayment $14.56
  • Maximum New Patient Copayment $44.24

Established Patients Visit Costs *

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

  • Average Established Patient Price $102.71
  • Minimum Established Patient Price $18.6
  • Maximum Established Patient Price $143.93
  • Average Established Patient Copayment $25.67
  • Minimum Established Patient Copayment $4.65
  • Maximum Established Patient Copayment $35.98

* 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.

Find Provider Hospital Affiliations - Privileges

Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.

Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Cheng-huai Ruan is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
MEMORIAL HERMANN - TEXAS MEDICAL CENTER6411 FANNIN
HOUSTON, TX 77030
(713) 704-3700Acute Care Hospitals
MEMORIAL HERMANN HOSPITAL SYSTEM1635 NORTH LOOP WEST
HOUSTON, TX 77008
(713) 448-6796Acute Care Hospitals
MEMORIAL HERMANN MEMORIAL CITY HOSPITAL921 GESSNER
HOUSTON, TX 77024
(713) 242-3000Acute Care Hospitals

Reviews for DR. CHENG-HUAI RUAN M.D.

There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.

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 1629210927, we treat the final digit (7) 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 7).

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

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 4 + 9 + 4 + 1 + 0 + 9 + 4 + 24 = 63

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

The next multiple of ten after 63 is 70. The difference is the calculated check digit.

70 - 63 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1629210927.

Other Providers at the Same Location


The following 8 providers are registered at the same or a nearby location.

Family Medicine
333 WEST LOOP N STE 250
HOUSTON, TX 77024
Health and Wellness Coach
333 WEST LOOP N STE 250
HOUSTON, TX 77024
Health and Wellness Coach
333 WEST LOOP N STE 250
HOUSTON, TX 77024
Nurse Practitioner (Family)
333 WEST LOOP N STE 250
HOUSTON, TX 77024
Dietitian, Registered
333 WEST LOOP N STE 250
HOUSTON, TX 77024
Nurse Practitioner (Family)
333 WEST LOOP N STE 250
HOUSTON, TX 77024
Internal Medicine
333 WEST LOOP N STE 250
HOUSTON, TX 77024
Nurse Practitioner (Family)
333 WEST LOOP N STE 250
HOUSTON, TX 77024

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1629210927, enumerated as an "individual" on April 01, 2009.

The provider is located at 333 WEST LOOP N STE 250 HOUSTON, TX 77024 and the phone number is (713) 690-1991.

Internal Medicine with taxonomy code 207R00000X.

The provider might be accepting Accepts: Blue Cross and Blue Shield of Texas and Community. Please consult your insurance carrier or call the provider to verify.

Cheng-huai Ruan is affiliated with: MEMORIAL HERMANN - TEXAS MEDICAL CENTER, MEMORIAL HERMANN HOSPITAL SYSTEM and MEMORIAL HERMANN MEMORIAL CITY HOSPITAL.