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MR. ALEXANDER XINLEI WU MD
NPI 1831584879
Internal Medicine in Fulton, MD

Active since April 06, 2015Opted out of Medicare · through Jan 1, 2028
86.79/100
CMS Quality Rating
11810 W MARKET PL # 200, FULTON, MD 20759(301) 761-8538(301) 709-8005 Get Directions Write a Review

NPPES record last updated: January 7, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 7, 2026, Oct 9, 2019, Aug 15, 2019 and 2 more (5 updates tracked since 2018).

About Mr. Alexander Xinlei Wu Md NPPES

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

MR. ALEXANDER XINLEI WU MD (NPI 1831584879) is an individual internal medicine provider in Fulton, Maryland, licensed in Maryland (D0091699) and active in the NPI registry since April 2015. He has opted out of Medicare through January 1, 2028 and remains eligible to order and refer, is affiliated with Johns Hopkins Howard County Medical Center, and is a graduate of University Of Pittsburgh School Of Medicine (2015).

NPPES Registry Identity

NPI1831584879
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMR. ALEXANDER XINLEI WUCredential: MD
Location Address11810 W MARKET PL # 200Fulton, MD 20759-2703
Mailing Address11539 Iager BlvdFulton, MD 20759-2658 · (301) 761-8538 · Fax (301) 709-8005
Phone(301) 761-8538
Fax(301) 709-8005
Sole ProprietorYes
Medical School CMSUniversity Of Pittsburgh School Of MedicineGraduated 2015
Enumeration DateApril 6, 2015
Last NPPES UpdateJanuary 7, 20265 updates tracked since enumeration
NPPES CertifiedJanuary 7, 2026
✔ NPI 1831584879 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MD · D0091699
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.
11810 W MARKET PL # 200, Fulton, MD 20759
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Mr. Alexander Xinlei Wu Md has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from January 1, 2026 through January 1, 2028.

Opt-Out Effective DateJanuary 1, 2026
Opt-Out In Effect ThroughJanuary 1, 2028Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Areas of Expertise CMS Part B claims 5

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.
458 services174 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
112 services111 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.
48 services25 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.
46 services46 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.
20 services19 patients

Hospital Affiliations CMS Care Compare

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

Johns Hopkins Howard County Medical Center

Acute Care Hospitals · Columbia, MD
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210048
Location5755 Cedar LaneColumbia, MD 21044 · Howard County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20759 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
$139.05 typical visit price
range $60.73 – $183.44
Typical copayment $34.76 (range $15.18 – $45.86)
Most-billed visit code 99204
Established Patient
$106.59 typical visit price
range $19.60 – $149.17
Typical copayment $26.64 (range $4.90 – $37.29)
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.

86.79/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality86.46
Promoting Interoperability97
Improvement Activities40
Cost72

Referred Medical Equipment & Supplies CMS DME claims 2

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

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
2 suppliers13 claims13 services$15.28 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
3 suppliers27 claims27 services$77.65 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

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

SHRUTI AGGARWAL M.B.B.S
Ophthalmology (Cornea and External Diseases Specialist)
11810 W MARKET PL # 200
FULTON, MD 20759
Howard County (301) 760-7771

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 Alexander Wu's NPI number?

The NPI number for Alexander Wu is 1831584879. It was assigned to this individual provider in the NPPES registry on April 6, 2015.

Where is Alexander Wu located?

Alexander Wu practices at 11810 W Market Pl # 200, Fulton, MD 20759. The listed phone number is (301) 761-8538.

What is Alexander Wu's specialty?

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

Is Alexander Wu enrolled in Medicare?

No. Alexander Wu has opted out of Medicare through January 1, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

Is Alexander Wu affiliated with any hospitals?

According to CMS data, Alexander Wu is affiliated with Johns Hopkins Howard County Medical Center.

When was this NPI record last updated?

The NPPES record for Alexander Wu was last updated on January 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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.