DR. HAO HOAN NGUYEN M.D.
NPI 1649581448
Internal Medicine - Infectious Disease in York, PA

NPI Status: Active since June 25, 2010

Contact Information

1001 S GEORGE ST
YORK HOSPITAL- MEDICAL EDUCATION
YORK, PA
ZIP 17403
Phone: (717) 851-4751
Fax: (717) 851-5888

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  • Individual
  • Male
  • Years of Experience 17
  • Internal Medicine
  • Infectious Disease
  • Accepts Medicare Approved Payment
  • PECOS Enrolled
  • Medicare Quality Reporting

About HAO NGUYEN

This page provides the complete NPI Profile along with additional information for Hao Nguyen, an internist established in York, Pennsylvania with a medical specialization in Internal Medicine, focusing in infectious disease and more than 17 years of experience. The healthcare provider is registered in the NPI registry with number 1649581448 assigned on June 2010. The practitioner's primary taxonomy code is 207RI0200X with license number MD456913 (PA). The provider is registered as an individual and his NPI record was last updated March 2026.

NPI
1649581448
Provider Name
DR. HAO HOAN NGUYEN M.D.
Gender
Male
Entity Type
Individual
Location Address
1001 S GEORGE ST YORK HOSPITAL- MEDICAL EDUCATION YORK, PA 17403
Location Phone
(717) 851-4751
Location Fax
(717) 851-5888
Mailing Address
724 GLADSTONE CT MECHANICSBURG, PA 17055
Mailing Phone
(717) 880-6550
Medical School Name
OTHER
Graduation Year
2010
Is Sole Proprietor?
Yes
Enumeration Date
06-25-2010
Last Update Date
03-12-2026
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An internist like Hao Nguyen 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

Secondary Locations

  • 817 Lawn Ave
    Sellersville, PA 18960
    (215) 257-8450
  • 4300 Londonderry Rd
    Harrisburg, PA 17109
    (717) 231-8772

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 Infectious Disease

Taxonomy Code
207RI0200X
Type
Allopathic & Osteopathic Physicians
License No.
MD456913
License State
PA
Taxonomy Description
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.

Medicare Participation & PECOS Enrollment Status

Hao Nguyen 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.

Hao Nguyen 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: 3678862257

    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: I20161130002432

    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-Oxygen and Supplies (DC000N)

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

    3 DME suppliers used 20 Medicare Claims 21 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 24 Medicare Claims 25 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)

    1 DME suppliers used 13 Medicare Claims 13 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 53 times for 44 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 16 times for 14 patients

Follow-up observation care per day, typically 35 minutes

Follow-up observation care is a daily check-up service that lasts about 35 minutes. It involves monitoring your health progress after a treatment or procedure. The care team assesses your recovery and addresses any concerns or questions you may have.

This service was performed 12 times for 12 patients

Hospital observation care on day of discharge

Hospital observation care on the day of discharge involves monitoring your health status to ensure stability before you leave. This includes assessing vital signs, response to treatment, and readiness for home care or rehabilitation.

This service was performed 47 times for 47 patients

Initial hospital observation care per day, typically 70 minutes

This service involves a healthcare professional closely monitoring your health condition during your hospital stay. It typically lasts for about 70 minutes each day. This helps in timely detection of any changes in your health, allowing for immediate response and treatment.

This service was performed 45 times for 45 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $31.58 for a new patient copayment and $24.2 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 17403 ZIP code area.

New Patients Visit Costs *

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

  • Average New Patient Price $126.34
  • Minimum New Patient Price $54.64
  • Maximum New Patient Price $166.87
  • Average New Patient Copayment $31.58
  • Minimum New Patient Copayment $13.66
  • Maximum New Patient Copayment $41.71

Established Patients Visit Costs *

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

  • Average Established Patient Price $96.82
  • Minimum Established Patient Price $17.33
  • Maximum Established Patient Price $135.84
  • Average Established Patient Copayment $24.2
  • Minimum Established Patient Copayment $4.33
  • Maximum Established Patient Copayment $33.96

* 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.

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
Care Plan 84% 117
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker or provide an advance care plan

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. Hao Nguyen is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
UPMC CARLISLE361 ALEXANDER SPRING ROAD
CARLISLE, PA 17015
(717) 249-1212Acute Care Hospitals
UPMC PINNACLE HOSPITALS409 SOUTH SECOND STREET
HARRISBURG, PA 17104
(717) 782-3131Acute Care Hospitals
ST MARY MEDICAL CENTERLANGHORNE-NEWTOWN RD
LANGHORNE, PA 19047
(215) 750-2003Acute Care Hospitals

Reviews for DR. HAO HOAN NGUYEN M.D.

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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 1649581448, we treat the final digit (8) 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 72. The final step is to find the difference between that total and the next multiple of ten (80 - 72 = 8).

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
4
Doubled → 8
Pos 4
9
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
8
Unchanged
Pos 7
1
Doubled → 2
Pos 8
4
Unchanged
Pos 9
4
Doubled → 8
Check
8
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 4 → 8 5 → 10 → 1 1 → 2 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 8 + 9 + 1 + 0 + 8 + 2 + 4 + 8 + 24 = 72

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

The next multiple of ten after 72 is 80. The difference is the calculated check digit.

80 - 72 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1649581448.

Other Providers at the Same Location


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

Pharmacist (Pharmacotherapy)
1001 S GEORGE ST
YORK, PA 17403
Radiology (Diagnostic Radiology)
1001 S GEORGE ST
YORK, PA 17403
Radiology (Diagnostic Radiology)
1001 S GEORGE ST
YORK, PA 17403
Pathology (Anatomic Pathology & Clinical Pathology)
1001 S GEORGE ST
YORK, PA 17403
Internal Medicine (Infectious Disease)
1001 S GEORGE ST, MKB 4TH FLR
YORK, PA 17403
Internal Medicine (Infectious Disease)
1001 S GEORGE ST, 4TH FLOOR KETTERMAN BUILDING
YORK, PA 17403
Anesthesiology
1001 S GEORGE ST
YORK, PA 17403
Anesthesiology
1001 S GEORGE ST
YORK, PA 17403
Anesthesiology
1001 S GEORGE ST
YORK, PA 17403
Anesthesiology
1001 S GEORGE ST
YORK, PA 17403
Anesthesiology
1001 S GEORGE ST
YORK, PA 17403
Anesthesiology
1001 S GEORGE ST
YORK, PA 17403
Anesthesiology
1001 S GEORGE ST
YORK, PA 17403
Nurse Anesthetist, Certified Registered
1001 S GEORGE ST
YORK, PA 17403
Anesthesiology
1001 S GEORGE ST
YORK, PA 17403
Anesthesiology
1001 S GEORGE ST
YORK, PA 17403
Nurse Anesthetist, Certified Registered
1001 S GEORGE ST
YORK, PA 17403
Nurse Anesthetist, Certified Registered
1001 S GEORGE ST
YORK, PA 17403
Anesthesiology
1001 S GEORGE ST
YORK, PA 17403
Anesthesiology
1001 S GEORGE ST
YORK, PA 17403

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1649581448, enumerated as an "individual" on June 25, 2010.

The provider is located at 1001 S GEORGE ST YORK HOSPITAL- MEDICAL EDUCATION YORK, PA 17403 and the phone number is (717) 851-4751.

Internal Medicine with taxonomy code 207RI0200X and a focus in Infectious Disease.

Hao Nguyen is affiliated with: UPMC CARLISLE, UPMC PINNACLE HOSPITALS and ST MARY MEDICAL CENTER.