XIAO-WEI CHERIE TAN MD
NPI 1679079693
Internal Medicine - Hematology & Oncology in Frederick, MD

Q: What is Xiao-wei Tan's NPI number?

The NPI number for Xiao-wei Tan is 1679079693. It was assigned to this individual provider in the NPPES registry on March 30, 2018.

Q: What is Xiao-wei Tan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Q: When was this NPI record last updated?

The NPPES record for Xiao-wei Tan was last updated on September 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.

Active since March 30, 2018PECOS EnrolledAccepts Medicare Assignment

112 THOMAS JOHNSON DR STE 250, FREDERICK, MD 21702(301) 695-6777(301) 695-4852 Get Directions Write a Review

NPPES record last updated: September 3, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 3, 2026, Jul 12, 2024, Jan 21, 2021 and 1 more (4 updates tracked since 2018).

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About Xiao-wei Cherie Tan Md NPPES

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

XIAO-WEI CHERIE TAN MD (NPI 1679079693) is an individual hematology & oncology provider in Frederick, Maryland, licensed in Maryland (D0091499) and active in the NPI registry since March 2018. She is enrolled in Medicare PECOS, is affiliated with St Joseph's Hospital Health Center, and maintains a secondary practice location in Germantown.

NPPES Registry Identity

NPI1679079693

Entity TypeIndividualFemale

Primary Taxonomy207RH0003X

Provider Legal NameXIAO-WEI CHERIE TANCredential: MD

Location Address112 THOMAS JOHNSON DR STE 250Frederick, MD 21702-4972

Mailing Address112 Thomas Johnson Dr Ste 250Frederick, MD 21702-4972 · (301) 695-6777 · Fax (301) 695-4852

Phone(301) 695-6777

Fax(301) 695-4852

Sole ProprietorNo

Medical School CMSUniversity Of Toledo College Of MedicineGraduated 2018

Enumeration DateMarch 30, 2018

Last NPPES UpdateSeptember 3, 20264 updates tracked since enumeration

NPPES CertifiedSeptember 3, 2026

✔ NPI 1679079693 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RH0003X

Licenses✔ Licensed in MD · D0091499✔ Licensed in NY · 326990

Definition

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

Also ListedInternal MedicineTaxonomy 207R00000X · License 326990 (NY), D0091499 (MD)

112 THOMAS JOHNSON DR STE 250, Frederick, MD 21702

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Secondary Practice Location 1

Location 120330 Seneca Meadows Pkwy # BGermantown, MD 20876-7004 · Phone (301) 424-6231 · Fax (301) 528-6009

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

Xiao-wei Cherie Tan 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 ID9335553221

PECOS Enrollment IDI20240711000038

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 Reassignments

Medicare enrollment records show Xiao-wei Tan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Maryland Oncology Hematology P.A.

32 mi

Hematology & Oncology

10710 CHARTER DRIVE, SUITE G020
Columbia, MD 21044

Reassigned Medicare billing, Maryland enrollment
Medicare enrollment name: Maryland Oncology Hematology PA
50 clinicians in this Medicare group

NPI 1396710703 (410) 964-2212

Hematology-Oncology Associates Of Cny, PC

262 mi

Hematology & Oncology

5008 BRITTONFIELD PKWY, SUITE 700
East Syracuse, NY 13057

Reassigned Medicare billing, New York enrollment
55 clinicians in this Medicare group

NPI 1902885429 (315) 472-7504

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 24

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.

Injection, aprepitant, 1 mg J0185

Aprepitant injection is a medication used to prevent nausea and vomiting caused by chemotherapy. It works by blocking certain substances in the brain that trigger these symptoms. The dosage is based on your medical condition and response to treatment.

1,690 services12 patients

Injection, dexamethasone sodium phosphate, 1 mg J1100

Dexamethasone sodium phosphate is a medication given via injection. It is a type of steroid that helps reduce inflammation and immune responses. It can be used to treat a variety of conditions, such as allergies, skin conditions, arthritis, and more.

220 services19 patients

Injection, palonosetron hcl, 25 mcg J2469

Palonosetron HCL is an injection used to prevent nausea and vomiting caused by chemotherapy. It works by blocking a natural substance (serotonin) in the body that can cause vomiting. This helps improve your comfort during cancer treatment.

150 services13 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.

79 services65 patients

Injection of additional new drug or substance into vein 96375

This procedure involves introducing a new medication or substance into your bloodstream via a vein. It's typically done using a small needle. The substance can help treat various conditions or assist in diagnostic procedures. It's generally safe and monitored by professionals.

72 services24 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

66 services39 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025

A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.

59 services36 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

45 services42 patients

Blood test, comprehensive group of blood chemicals 80053

A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.

42 services36 patients

Administration of chemotherapy into vein, 1 hour or less 96413

Chemotherapy is a treatment that uses drugs to destroy cancer cells. When administered into a vein, it's often through an IV. This procedure usually lasts 1 hour or less. You may feel a slight pinch as the needle is inserted, but it's generally painless.

41 services33 patients

Gammaglobulin (immune system protein) measurement 82784

Gammaglobulin measurement is a blood test that checks the levels of certain proteins (gammaglobulins) that the body uses to fight infections. High or low levels can indicate various health conditions. It's a simple, quick procedure with minimal discomfort.

39 services12 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

36 services27 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

25 services22 patients

Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 96365

This is a procedure where a medical professional inserts a small tube into your vein to deliver medication, nutrients, or fluids directly into your bloodstream. This can be for treatment, prevention, or diagnosis. The process typically takes less than an hour.

24 services22 patients

Measurement of immunoglobulin light chains 83521

Measurement of immunoglobulin light chains is a blood test that helps to detect and monitor certain disorders related to your immune system. It measures the levels of specific proteins, known as light chains, produced by your immune cells.

22 services11 patients

Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle 96401

This procedure involves giving anti-cancer drugs, which don't contain hormones, into the muscle or under the skin. These drugs help to stop the growth of cancer cells. The process is usually quick and done by a healthcare professional.

22 services13 patients

Ferritin (blood protein) level 82728

A Ferritin level test measures the amount of ferritin, a protein that stores iron, in your blood. It helps determine how much iron your body is storing. If levels are low, it may indicate iron deficiency, while high levels could signify conditions like iron overload.

21 services16 patients

Iron level 83540

An iron level test measures the amount of iron in your blood. Iron is crucial for producing hemoglobin, a protein in red blood cells that carries oxygen throughout your body. This test helps identify iron deficiencies or excesses, which can lead to conditions like anemia or hemochromatosis.

21 services16 patients

Iron binding capacity 83550

Iron binding capacity is a blood test that measures how well your body can bind and transport iron. This helps your healthcare provider assess if your body has too little or too much iron, which can indicate certain health conditions.

21 services16 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

21 services21 patients

Red blood count automated, with additional calculations 85046

An automated red blood cell count is a laboratory test that counts the number of red blood cells in your blood. This test also includes additional calculations to measure the size, volume, and hemoglobin concentration of these cells. It helps to identify any abnormalities in your blood.

14 services11 patients

Administration of additional new drug or substance into vein, 1 hour or less 96417

This procedure involves introducing a new drug or substance into your vein, typically via an IV drip. It lasts for an hour or less. This method allows the substance to quickly reach your bloodstream, ensuring rapid and effective treatment.

14 services12 patients

Protein measurement, serum 84165

A serum protein measurement is a blood test that determines the levels of proteins in your blood. It is used to evaluate your overall health, and diagnose nutritional problems, kidney disease, liver disease, or immune disorders.

12 services12 patients

Immunologic analysis technique on serum (immunofixation) 86334

Immunofixation is a lab test that helps identify proteins called immunoglobulins in your blood serum. These proteins are part of your immune system. Changes in their levels can indicate certain diseases. The test is simple and only requires a blood sample.

12 services12 patients

Hospital Affiliations CMS Care Compare 4

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

St Joseph's Hospital Health Center

Acute Care Hospitals · Syracuse, NY

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330140

Location301 Prospect AvenueSyracuse, NY 13203 · Onondaga County

Emergency services Birthing friendly

Crouse Hospital

Acute Care Hospitals · Syracuse, NY

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330203

Location736 Irving AvenueSyracuse, NY 13210 · Onondaga County

Emergency services Birthing friendly

Auburn Community Hospital

Acute Care Hospitals · Auburn, NY

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330235

Location17 Lansing StreetAuburn, NY 13021 · Cayuga County

Emergency services Birthing friendly

University Hospital S U N Y Health Science Center

Acute Care Hospitals · Syracuse, NY

3/5 CMS rating

OwnershipGovernment - State

CMS Certification Number330241

Location750 East Adams StreetSyracuse, NY 13210 · Onondaga County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21702 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

$175.57 typical visit price

range $57.99 – $175.57

Typical copayment $43.89 (range $14.49 – $43.89)

Most-billed visit code 99205

Established Patient

$102.11 typical visit price

range $18.66 – $143.02

Typical copayment $25.52 (range $4.66 – $35.75)

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

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

MARYLAND ONCOLOGY HEMATOLOGY

Internal Medicine (Hematology & Oncology)

112 THOMAS JOHNSON DR STE 250
FREDERICK, MD 21702

Frederick County (301) 695-6777

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 Xiao-wei Tan's NPI number?

The NPI number for Xiao-wei Tan is 1679079693. It was assigned to this individual provider in the NPPES registry on March 30, 2018.

Where is Xiao-wei Tan located?

Xiao-wei Tan practices at 112 Thomas Johnson Dr Ste 250, Frederick, MD 21702. The listed phone number is (301) 695-6777.

What is Xiao-wei Tan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Xiao-wei Tan enrolled in Medicare?

Yes. Xiao-wei Tan 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 organizations bill Medicare for Xiao-wei Tan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Xiao-wei Tan reassigns Medicare benefits to 2 organizations: Maryland Oncology Hematology P.A. (Columbia, MD) and Hematology-Oncology Associates Of Cny, PC (East Syracuse, NY). Each 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 Xiao-wei Tan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Xiao-wei Tan affiliated with any hospitals?

According to CMS data, Xiao-wei Tan is affiliated with St Joseph's Hospital Health Center, Crouse Hospital, Auburn Community Hospital and University Hospital S U N Y Health Science Center.

When was this NPI record last updated?

The NPPES record for Xiao-wei Tan was last updated on September 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.