GARY GUO MD
NPI 1932129582
Internal Medicine in Valhalla, NY

Q: What is Gary Guo's NPI number?

The NPI number for Gary Guo is 1932129582. It was assigned to this individual provider in the NPPES registry on July 19, 2006.

Q: What is Gary Guo'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 Gary Guo was last updated on February 29, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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 July 19, 2006PECOS EnrolledAccepts Medicare Assignment

95 GRASSLANDS RD-NYMC, DEPT OF MEDICINE-MUNGER PAVILION, VALHALLA, NY 10595(914) 493-8370(914) 594-4434 Get Directions Write a Review

NPPES record last updated: February 29, 2008. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Gary Guo Md NPPES

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

GARY GUO MD (NPI 1932129582) is an individual internal medicine provider in Valhalla, New York, licensed in New York (234103) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Westchester Medical Center, and is a graduate of Other (1982).

NPPES Registry Identity

NPI1932129582

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameGARY GUOCredential: MD

Location Address95 GRASSLANDS RD-NYMC, DEPT OF MEDICINE-MUNGER PAVILIONValhalla, NY 10595

Mailing Address95 Grasslands Rd-nymc, Dept Of Medicine-munger PavilionValhalla, NY 10595 · (914) 493-8370 · Fax (914) 594-4434

Phone(914) 493-8370

Fax(914) 594-4434

Sole ProprietorNo

Medical School CMSOtherGraduated 1982

Enumeration DateJuly 19, 2006

Last NPPES UpdateFebruary 29, 2008

✔ NPI 1932129582 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in NY · 234103

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.

95 GRASSLANDS RD-NYMC, Valhalla, NY 10595

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Other Identifiers 10

Other00000087864NY · Ghi Hmo

Other2589997NY · Ghi Ppo

Other4147380NY · Mvp

OtherGG4103Atlantis

Other1443558NY · Aetna Hmo

OtherP00227230NY · Railroad Medicare

Other7528769NY · Aetna Ppo

OtherP3538345NY · Oxford

Other3431H2NY · Empire Bcbs

Other5C5569NY · Healthnet

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

Gary Guo Md 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 ID8820044498

PECOS Enrollment IDI20050326000022

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 4

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 hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

558 services137 patients

Hospital discharge day management, 30 minutes or less 99238

Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.

71 services68 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

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.

33 services32 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

13 services13 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Westchester Medical Center

Acute Care Hospitals · Valhalla, NY

1/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number330234

Location100 Woods RdValhalla, NY 10595 · Westchester County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10595 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

$154.28 typical visit price

range $67.40 – $203.53

Typical copayment $38.57 (range $16.85 – $50.88)

Most-billed visit code 99204

Established Patient

$117.62 typical visit price

range $21.66 – $164.45

Typical copayment $29.40 (range $5.41 – $41.11)

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.

Other Providers at the Same Location NPPES 10

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

MADHAVI KOKA MD

Hospitalist

95 GRASSLANDS RD-NYMC, DEPT OF MEDICINE-MUNGER PAVILION
VALHALLA, NY 10595

Westchester County (914) 493-8370

ARIF MUMTAZ MD

Internal Medicine

95 GRASSLANDS RD-NYMC, DEPT OF MEDICINE-MUNGER PAVILION
VALHALLA, NY 10595

Westchester County (914) 493-8370

IRENE WEISS MD

Internal Medicine (Endocrinology, Diabetes & Metabolism)

95 GRASSLANDS RD-NYMC, DEPT OF MEDICINE-MUNGER PAVILION
VALHALLA, NY 10595

Westchester County (914) 594-4429

DEBORAH SHAPIRO MD

Internal Medicine (Rheumatology)

95 GRASSLANDS RD-NYMC, DEPT OF MEDICINE-MUNGER PAVILION
VALHALLA, NY 10595

Westchester County (914) 594-4444

WILLIAM FRISHMAN MD

Internal Medicine (Cardiovascular Disease)

95 GRASSLANDS RD-NYMC, DEPT OF MEDICINE-MUNGER PAVILION
VALHALLA, NY 10595

Westchester County (914) 594-4388

STUART LEHRMAN MD

Internal Medicine (Pulmonary Disease)

95 GRASSLANDS RD-NYMC, DEPT OF MEDICINE-MACY PAVILION
VALHALLA, NY 10595

Westchester County (914) 493-7517

DIPAK CHANDY MD

Internal Medicine (Pulmonary Disease)

95 GRASSLANDS RD-NYMC, DEPT OF MEDICINE-MACY PAVILION
VALHALLA, NY 10595

Westchester County (914) 493-7517

ANDREW GUTWEIN MD

Internal Medicine

95 GRASSLANDS RD-NYMC, DEPT OF MEDICINE-MUNGER PAVILION
VALHALLA, NY 10595

Westchester County (914) 493-8370

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 Gary Guo's NPI number?

The NPI number for Gary Guo is 1932129582. It was assigned to this individual provider in the NPPES registry on July 19, 2006.

Where is Gary Guo located?

Gary Guo practices at 95 Grasslands Rd-Nymc Dept Of Medicine-Munger Pavilion, Valhalla, NY 10595. The listed phone number is (914) 493-8370.

What is Gary Guo's specialty?

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

Is Gary Guo enrolled in Medicare?

Yes. Gary Guo 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.

Is Gary Guo affiliated with any hospitals?

According to CMS data, Gary Guo is affiliated with Westchester Medical Center.

When was this NPI record last updated?

The NPPES record for Gary Guo was last updated on February 29, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.