Dr. Xiaowen Zhang, MD
- Medicare services, 2024
- 815
- Medicare patients, 2024
- 351
- Part D claims, 2024
- 296
- Hospital affiliations
- 9
- Industry payments
- $178
- Practice address
- 801 Middleford Rd, Seaford, DE 19973
- Practice phone
- Call (302) 629-6611
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Zhang's professional email, personal email and mobile number
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Dr. Xiaowen Zhang is a hospitalist in Seaford, Delaware
Dr. Zhang practices at TidalHealth Nanticoke in Seaford, Delaware, part of TidalHealth Peninsula Regional.
Dr. Zhang's NPI, 1144683442, was assigned on April 4, 2016. Dr. Zhang holds Pennsylvania license MD468667.
- NPI
- 1144683442NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3870822679
- NPI enumeration date
- April 4, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (302) 629-6611
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Xiaowen Zhang practices at TidalHealth Nanticoke in Seaford, Delaware
Dr. Zhang's primary practice is TidalHealth Nanticoke, at 801 Middleford Rd, Seaford, DE 19973 in Sussex County. The practice phone is (302) 629-6611.
- TidalHealth Nanticoke801 Middleford Rd, Seaford, DE 19973 · Sussex CountyPhone(302) 629-6611
Source: Dmand AI Affiliation Data
Dr. Xiaowen Zhang is affiliated with 10 sites of care and 12 medical groups
Dr. Zhang's primary practice is TidalHealth Nanticoke in Seaford, Delaware, part of TidalHealth Peninsula Regional. Dr. Zhang is also affiliated with Virtua Voorhees Hospital. The medical group on file is Apogee Physicians. Dmand AI also links Dr. Zhang to 7 more hospitals, 11 medical groups and 1 therapy and rehab clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Xiaowen Zhang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zhang practices, 10 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| TidalHealth Nanticoke | Available with a free account |
| +9 more sites and 11 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across TidalHealth Peninsula Regional and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Xiaowen Zhang is one of 72 hospitalists in Delaware
Hospitalist is Dr. Zhang's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dmand AI has Dr. Zhang's licenses on file in 2 states: Pennsylvania and New Jersey.
Specialties and state licenses
- Hospitalist, PennsylvaniaPrimary
- New Jersey license
Hospitalists near Dr. Zhang
Counts of hospitalists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Xiaowen Zhang billed Medicare for 815 services in 2024
CMS data shows 815 Medicare services from Dr. Zhang across 4 procedure codes in 2024, for 351 Medicare patients. Medicare paid $66,390 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Zhang's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 7132024: 81514%
Dr. Zhang compared with the Delaware median for hospitalists, 2024
- Dr. Zhang
- Delaware median
- Medicare services
- 815vs 57841% above
- Medicare patients
- 351vs 28424% above
- Part D claims
- 105vs 8130% above
Medians across 53 hospitalists in Delaware with Dmand AI profiles that report each measure.
Dr. Zhang's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Xiaowen Zhang treated 351 Medicare patients in 2024, average age 76
CMS counts 351 Medicare patients who saw Dr. Zhang in 2024. The largest group is 75 to 84, with 131 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 30% are also on Medicaid. Their average risk score is 2.45, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Zhang's median patient age at 70, with 53% women.
Dr. Zhang's Medicare patients by age, 2024
Dr. Zhang's Medicare patients by sex, 2024
- Women19355%
- Men15845%
Chronic conditions among Dr. Zhang's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis60%
- Ischemic heart disease58%
- Heart failure51%
- Chronic kidney disease50%
- Atrial fibrillation48%
- Diabetes47%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zhang's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women53%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Xiaowen Zhang wrote 296 Medicare Part D claims in 2024
In 2024, Dr. Zhang wrote 296 Medicare Part D claims for 129 patients. 86% of them were for generic drugs. CMS names the drug for 105 of them, across 7 drugs with 11 or more claims each, at $1,816 in total drug cost. In 2023, CMS named 43 claims across 3 drugs.
Dr. Zhang's Part D claims by kind of drug, 2024
- Generic255 claims86%
- Brand-name41 claims14%
Dr. Zhang's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Zhang's Part D claims, 2024
- Antibiotics29%87 of 296 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 432024: 105144%
Drugs named by CMS: 7 in 2024, 3 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Xiaowen Zhang takes part in Medicare
Dr. Zhang accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Xiaowen Zhang received $178 in industry payments from 2019 to 2025
CMS Open Payments shows 8 general payments to Dr. Zhang from 5 drug and device companies from 2019 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $57.
General payments to Dr. Zhang by program year, 2019 to 2025
Companies that paid Dr. Zhang the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Xiaowen Zhang's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Xiaowen Zhang
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Xiaowen Zhang's NPI number?
Dr. Xiaowen Zhang's NPI number is 1144683442. It was assigned on April 4, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Xiaowen Zhang?
Dr. Xiaowen Zhang is a hospitalist in Seaford, Delaware. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Xiaowen Zhang practice?
Dr. Zhang practices at 801 Middleford Rd, Seaford, DE 19973. Dr. Zhang's primary practice is TidalHealth Nanticoke in Seaford, Delaware, part of TidalHealth Peninsula Regional. Dmand AI also links Dr. Zhang to 7 hospitals, 11 medical groups and 1 therapy and rehab clinic.
What is Dr. Xiaowen Zhang's office phone number?
The practice phone on file for Dr. Zhang is (302) 629-6611.
What is Dr. Xiaowen Zhang's medical license number?
Dr. Zhang holds Pennsylvania license MD468667, one of the licenses on file in 2 states.
Which states has Dr. Xiaowen Zhang been licensed in?
Dmand AI has state licenses on file for Dr. Zhang in Pennsylvania and New Jersey.
Which hospitals is Dr. Xiaowen Zhang affiliated with?
Dr. Zhang practices at TidalHealth Nanticoke in Seaford, Delaware. Dr. Zhang is also affiliated with Virtua Voorhees Hospital. Dmand AI links Dr. Zhang to 7 more hospitals.
What medical group is Dr. Xiaowen Zhang part of?
Dr. Zhang is linked to Apogee Physicians. Dmand AI links Dr. Zhang to 11 more medical groups.
Does Dr. Xiaowen Zhang accept Medicare?
Yes. CMS data shows Dr. Zhang billed Medicare for 815 services in 2024, and Dr. Zhang accepts Medicare assignment.
How many Medicare patients does Dr. Xiaowen Zhang see?
CMS counts 351 Medicare patients who saw Dr. Zhang in 2024, with an average age of 76.
Show 4 more questionsShow fewer questions
What services does Dr. Xiaowen Zhang bill to Medicare?
In 2024, Dr. Zhang's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and hospital inpatient care (99239).
What drugs does Dr. Xiaowen Zhang prescribe most?
In 2024 Medicare Part D data, Dr. Zhang's most prescribed drugs by claims were Prednisone, Albuterol Sulfate Hfa and Metoprolol Succinate.
Has Dr. Xiaowen Zhang received payments from drug or device companies?
CMS Open Payments shows $178 in general payments to Dr. Zhang from 5 companies from 2019 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Xiaowen Zhang been practicing?
Dr. Zhang graduated from medical school in 1999, 27 years ago.
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