HUAN GUU M.D.
NPI 1952352668
Internal Medicine in Mission Viejo, CA

Q: What is Huan Guu's NPI number?

The NPI number for Huan Guu is 1952352668. It was assigned to this individual provider in the NPPES registry on May 15, 2006.

Q: What is Huan Guu's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Huan Guu was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since May 15, 2006PECOS EnrolledAccepts Medicare Assignment

81.65/100

CMS Quality Rating

27700 MEDICAL CENTER RD, MISSION VIEJO, CA 92691(949) 364-1400 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Huan Guu M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

HUAN GUU M.D. (NPI 1952352668) is an individual internal medicine provider in Mission Viejo, California, licensed in California (A62481) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS and is a graduate of Medical College Of Pennsylvania (1995).

NPPES Registry Identity

NPI1952352668

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameHUAN GUUCredential: M.D.

Location Address27700 MEDICAL CENTER RDMission Viejo, CA 92691-6426

Mailing AddressPo Box 80811San Diego, CA 92138-0811 · (619) 285-5987

Phone(949) 364-1400

Sole ProprietorNo

Medical School CMSMedical College Of PennsylvaniaGraduated 1995

Enumeration DateMay 15, 2006

Last NPPES UpdateJuly 8, 2007

✔ NPI 1952352668 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in CA · A62481

Definition

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.

27700 MEDICAL CENTER RD, Mission Viejo, CA 92691

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Other Identifiers 1

Medicare UPINH58207CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Huan Guu M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4284736976

PECOS Enrollment IDI20070227000402

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309

A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.

3,295 services688 patients

Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more 99308

A follow-up nursing facility visit per day is a daily check-up service provided by healthcare professionals. It lasts around 15 minutes and involves assessing your health status, monitoring your recovery progress, and addressing any concerns you may have about your health or treatment.

1,159 services209 patients

Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more 99306

An initial nursing facility visit is your first meeting with your healthcare team at a nursing facility. Lasting typically 45 minutes, this appointment involves a comprehensive health assessment and the creation of your personalized care plan. It's a crucial step to ensure your health and well-being.

303 services281 patients

Advance care planning, first 30 minutes 99497

Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.

302 services282 patients

Nursing facility discharge management, more than 30 minutes 99316

Nursing facility discharge management over 30 minutes is a comprehensive process where a healthcare team prepares you for leaving the facility. It involves creating a tailored plan, coordinating care, and ensuring a smooth transition to your next care setting.

151 services149 patients

Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 99310

A follow-up nursing facility visit is a routine check-up that typically lasts about 35 minutes. During this visit, your health status is evaluated, any changes in your condition are noted, and necessary adjustments to your care plan are made. It's an essential part of maintaining your health.

14 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92691 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$142.39 typical visit price

range $62.96 – $187.60

Typical copayment $35.59 (range $15.74 – $46.90)

Most-billed visit code 99204

Established Patient

$109.96 typical visit price

range $20.84 – $153.61

Typical copayment $27.49 (range $5.21 – $38.40)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

81.65/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Individually scored

Quality

Improvement Activities

Cost

20.3

Reported Quality Measures

Advance Care Plan

100%995 patients5/55-star benchmark: 100%

Documentation of Current Medications in the Medical Record

100%6,853 patients5/55-star benchmark: 100%

Falls: Plan of Care

100%995 patients

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan

100%1,071 patients5/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 36

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Enteral feeding supply kit; pump fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4035

Other-Enteral and Parenteral · category OB006N

3 suppliers22 claims644 services$4.34 avg. paid by Medicare

Enteral formula, nutritionally complete with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4150

Other-Enteral and Parenteral · category OB006N

3 suppliers20 claims9,636 services$0.31 avg. paid by Medicare

Enteral nutrition infusion pump, any type B9002

Other-Enteral and Parenteral · category OB005N

2 suppliers11 claims11 services$53.18 avg. paid by Medicare

Walker, folding, wheeled, adjustable or fixed height E0143

DME-Other DME · category DE000N

7 suppliers54 claims54 services$38.98 avg. paid by Medicare

Seat attachment, walker E0156

DME-Other DME · category DE000N

5 suppliers12 claims12 services$14.17 avg. paid by Medicare

Commode chair, mobile or stationary, with fixed arms E0163

DME-Other DME · category DE000N

5 suppliers27 claims27 services$44.03 avg. paid by Medicare

Powered pressure reducing mattress overlay/pad, alternating, with pump, includes heavy duty E0181

DME-Other DME · category DE000N

1 supplier12 claims12 services$10.63 avg. paid by Medicare

Dry pressure mattress E0184

DME-Other DME · category DE000N

2 suppliers15 claims15 services$129.90 avg. paid by Medicare

Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260

DME-Hospital Beds · category DB000N

2 suppliers94 claims94 services$44.47 avg. paid by Medicare

Hospital bed, semi-electric (head and foot adjustment), with any type side rails, without mattress E0261

DME-Hospital Beds · category DB000N

2 suppliers116 claims116 services$37.37 avg. paid by Medicare

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

6 suppliers63 claims63 services$14.41 avg. paid by Medicare

High frequency chest wall oscillation system, with full anterior and/or posterior thoracic region receiving simultaneous external oscillation, includes all accessories and supplies, each E0483

DME-Other DME · category DE000N

1 supplier12 claims12 services$897.90 avg. paid by Medicare

Nebulizer, with compressor E0570

DME-Other DME · category DE000N

3 suppliers33 claims33 services$3.43 avg. paid by Medicare

Patient lift, hydraulic or mechanical, includes any seat, sling, strap(s) or pad(s) E0630

DME-Other DME · category DE000N

3 suppliers32 claims32 services$40.24 avg. paid by Medicare

Iv pole E0776

DME-Other DME · category DE000N

2 suppliers11 claims11 services$6.15 avg. paid by Medicare

Heel loop/holder, any type, with or without ankle strap, each E0951

DME-Wheelchairs · category DD000N

3 suppliers26 claims43 services$9.17 avg. paid by Medicare

Wheelchair accessory, headrest, cushioned, any type, including fixed mounting hardware, each E0955

DME-Wheelchairs · category DD021N

2 suppliers15 claims15 services$9.80 avg. paid by Medicare

Manual wheelchair accessory, wheel lock brake extension (handle), each E0961

DME-Wheelchairs · category DD021N

4 suppliers12 claims24 services$18.81 avg. paid by Medicare

Manual wheelchair accessory, anti-tipping device, each E0971

DME-Wheelchairs · category DD021N

7 suppliers33 claims64 services$34.10 avg. paid by Medicare

Manual wheelchair accessory, anti-tipping device, each E0971

DME-Wheelchairs · category DD021N

2 suppliers14 claims19 services$2.19 avg. paid by Medicare

Wheelchair accessory, adjustable height, detachable armrest, complete assembly, each E0973

DME-Wheelchairs · category DD021N

1 supplier17 claims34 services$51.53 avg. paid by Medicare

Wheelchair accessory, positioning belt/safety belt/pelvic strap, each E0978

DME-Wheelchairs · category DD021N

2 suppliers17 claims17 services$20.40 avg. paid by Medicare

Wheelchair accessory, elevating leg rest, complete assembly, each E0990

DME-Wheelchairs · category DD021N

3 suppliers23 claims46 services$60.57 avg. paid by Medicare

Transport chair, adult size, patient weight capacity up to and including 300 pounds E1038

DME-Other DME · category DE000N

4 suppliers121 claims121 services$8.36 avg. paid by Medicare

Wheelchair accessory, manual fully reclining back, (recline greater than 80 degrees), each E1226

DME-Wheelchairs · category DD021N

2 suppliers37 claims37 services$28.36 avg. paid by Medicare

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

DME-Oxygen and Supplies · category DC002N

6 suppliers86 claims86 services$62.69 avg. paid by Medicare

Portable oxygen concentrator, rental E1392

DME-Oxygen and Supplies · category DC002N

1 supplier11 claims11 services$29.61 avg. paid by Medicare

General use wheelchair seat cushion, width less than 22 inches, any depth E2601

DME-Wheelchairs · category DD021N

7 suppliers58 claims58 services$33.47 avg. paid by Medicare

General use wheelchair back cushion, width less than 22 inches, any height, including any type mounting hardware E2611

DME-Wheelchairs · category DD021N

5 suppliers34 claims34 services$111.23 avg. paid by Medicare

Standard wheelchair K0001

DME-Wheelchairs · category DD000N

5 suppliers421 claims429 services$13.83 avg. paid by Medicare

Standard hemi (low seat) wheelchair K0002

DME-Wheelchairs · category DD000N

2 suppliers11 claims11 services$20.73 avg. paid by Medicare

Lightweight wheelchair K0003

DME-Wheelchairs · category DD000N

4 suppliers50 claims50 services$16.80 avg. paid by Medicare

Ultralightweight wheelchair K0005

DME-Wheelchairs · category DD000N

3 suppliers23 claims23 services$1,692.76 avg. paid by Medicare

Heavy duty wheelchair K0006

DME-Wheelchairs · category DD000N

1 supplier13 claims13 services$35.96 avg. paid by Medicare

Extra heavy duty wheelchair K0007

DME-Wheelchairs · category DD000N

1 supplier11 claims11 services$55.02 avg. paid by Medicare

Elevating leg rests, pair (for use with capped rental wheelchair base) K0195

DME-Wheelchairs · category DD021N

4 suppliers83 claims83 services$7.40 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CHELSEA ZIMMERMAN

Nurse Practitioner (Acute Care)

27700 MEDICAL CENTER RD
MISSION VIEJO, CA 92691

Orange County (949) 364-1400

MISSION HOSPITAL REGIONAL MEDICAL CENTER

Rehabilitation Hospital

27700 MEDICAL CENTER RD
MISSION VIEJO, CA 92691

Orange County (949) 364-1400

LAUREN ELIZABETH VENTO PA-C

Physician Assistant

27700 MEDICAL CENTER RD
MISSION VIEJO, CA 92691

Orange County (949) 364-1400

JOHN ERIC MELLOTT P.A.

Physician Assistant

27700 MEDICAL CENTER RD
MISSION VIEJO, CA 92691

Orange County (949) 364-1400

DHP OF MISSION MEDICAL GROUP INC

Orthopaedic Surgery

27700 MEDICAL CENTER RD
MISSION VIEJO, CA 92691

Orange County (949) 364-1400

MS. BRENDI M GAYLE AG-ACNP

Nurse Practitioner (Acute Care)

27700 MEDICAL CENTER RD
MISSION VIEJO, CA 92691

Orange County (949) 364-1400

MISSION VIEJO EMERGENCY MEDICAL ASSOCIATES

Emergency Medicine

27700 MEDICAL CENTER RD
MISSION VIEJO, CA 92691

Orange County (844) 474-4019

DR. JIMMY TON M.D.

Radiology (Vascular & Interventional Radiology)

27700 MEDICAL CENTER RD
MISSION VIEJO, CA 92691

Orange County (949) 364-1400

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Huan Guu's NPI number?

The NPI number for Huan Guu is 1952352668. It was assigned to this individual provider in the NPPES registry on May 15, 2006.

Where is Huan Guu located?

Huan Guu practices at 27700 Medical Center Rd, Mission Viejo, CA 92691. The listed phone number is (949) 364-1400.

What is Huan Guu's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Huan Guu enrolled in Medicare?

Yes. Huan Guu is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Huan Guu was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.