NAM NHAT HA MD
NPI 1659863124
Internal Medicine - Nephrology in Fairfax, VA

Q: What is Nam Ha's NPI number?

The NPI number for Nam Ha is 1659863124. It was assigned to this individual provider in the NPPES registry on May 31, 2018.

Q: What is Nam Ha's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Q: Is Nam Ha enrolled in Medicare?

Yes. Nam Ha 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.

Q: When was this NPI record last updated?

The NPPES record for Nam Ha was last updated on September 6, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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 31, 2018PECOS EnrolledAccepts Medicare Assignment

8316 ARLINGTON BLVD STE 104, FAIRFAX, VA 22031(703) 560-1313(703) 560-7148 Get Directions Write a Review

NPPES record last updated: September 6, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Nam Nhat Ha Md NPPES

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

NAM NHAT HA MD (NPI 1659863124) is an individual nephrology provider in Fairfax, Virginia, licensed in Virginia (0101277955) and active in the NPI registry since May 2018. He is enrolled in Medicare PECOS, is affiliated with Virginia Hospital Center, and maintains a secondary practice location in York.

NPPES Registry Identity

NPI1659863124

Entity TypeIndividualMale

Primary Taxonomy207RN0300X

Provider Legal NameNAM NHAT HACredential: MD

Location Address8316 ARLINGTON BLVD STE 104Fairfax, VA 22031-5216

Mailing Address1201 Seven Locks Rd Ste 200aRockville, MD 20854-2931 · (301) 907-3939 · Fax (301) 656-3943

Phone(703) 560-1313

Fax(703) 560-7148

Sole ProprietorNo

Medical School CMSOtherGraduated 2018

Enumeration DateMay 31, 2018

Last NPPES UpdateSeptember 6, 2023

NPPES CertifiedSeptember 6, 2023

✔ NPI 1659863124 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

License✔ Licensed in VA · 0101277955

Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

Also ListedInternal MedicineTaxonomy 207R00000X · License MT215582 (PA)

8316 ARLINGTON BLVD STE 104, Fairfax, VA 22031

Open in Google Maps ↗

Secondary Practice Location 1

Location 11001 S George StYork, PA 17403-3676 · Phone (717) 741-8003

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Nam Nhat Ha 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 ID8224381124

PECOS Enrollment IDI20230531003460, I20241015000484

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.

Medicare Billing Reassignment

Medicare enrollment records show Nam Ha reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Washington Nephrology Associates, L.L.P.

14 mi

Nephrology

1201 SEVEN LOCKS RD STE 200
Rockville, MD 20854

Reassigned Medicare billing, District of Columbia and Virginia enrollments
Medicare enrollment name: Washington Nephrology Associates LLP
41 clinicians in this Medicare group

NPI 1124193479 (301) 907-4646

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

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.

816 services171 patients

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.

522 services152 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.

141 services121 patients

Dialysis services, 4 or more physician visits per month (20 years or older) 90960

Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys can't do their job. This service includes 4 or more visits per month with a physician to monitor your health and adjust your treatment as needed.

78 services19 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.

75 services72 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

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.

60 services31 patients

Hospital Affiliations CMS Care Compare 4

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

Virginia Hospital Center

Acute Care Hospitals · Arlington, VA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number490050

Location1701 North George Mason DriveArlington, VA 22205 · Arlington County

Emergency services Birthing friendly

Inova Fairfax Hospital

Acute Care Hospitals · Falls Church, VA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number490063

Location3300 Gallows RoadFalls Church, VA 22042 · Fairfax County

Emergency services Birthing friendly

Inova Fair Oaks Hospital

Acute Care Hospitals · Fairfax, VA

5/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number490101

Location3600 Joseph Siewick DriveFairfax, VA 22033 · Fairfax County

Birthing friendly

Inova Mount Vernon Hospital

Acute Care Hospitals · Alexandria, VA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number490122

Location2501 Parkers LaneAlexandria, VA 22306 · Fairfax County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22031 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

$147.85 typical visit price

range $65.18 – $194.86

Typical copayment $36.96 (range $16.29 – $48.71)

Most-billed visit code 99204

Established Patient

$113.72 typical visit price

range $21.40 – $158.88

Typical copayment $28.43 (range $5.35 – $39.72)

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 2

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

DR. AHMED ALADHAM DO

Internal Medicine

8316 ARLINGTON BLVD STE 104
FAIRFAX, VA 22031

Fairfax County (703) 560-1313

DR. ZAID AKRAM HAMMOODI M.D.

Internal Medicine (Nephrology)

8316 ARLINGTON BLVD STE 104
FAIRFAX, VA 22031

Fairfax County (703) 560-1313

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 Nam Ha's NPI number?

The NPI number for Nam Ha is 1659863124. It was assigned to this individual provider in the NPPES registry on May 31, 2018.

Where is Nam Ha located?

Nam Ha practices at 8316 Arlington Blvd Ste 104, Fairfax, VA 22031. The listed phone number is (703) 560-1313.

What is Nam Ha's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Nam Ha enrolled in Medicare?

Yes. Nam Ha 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.

Which organization bills Medicare for Nam Ha's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nam Ha reassigns Medicare benefits to Washington Nephrology Associates, L.L.P. (Rockville, MD). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Nam Ha's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Nam Ha affiliated with any hospitals?

According to CMS data, Nam Ha is affiliated with Virginia Hospital Center, Inova Fairfax Hospital, Inova Fair Oaks Hospital and Inova Mount Vernon Hospital.

When was this NPI record last updated?

The NPPES record for Nam Ha was last updated on September 6, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.