Hongyu Zhang

  • West Chester, PA
  • Internist
NPI1609280551PAC ID4587986674
Medicare services, 2024
708
Medicare patients, 2024
456
Part D claims, 2024
170
Hospital affiliations
6
Industry payments
$110
Practice address
701 East Marshall Street, West Chester, PA 19380
Practice phone
Call (610) 431-5000
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

Chester County Hospital

Hospital · West Chester, Pennsylvania

See all 14 affiliations

Find Hongyu Zhang's professional email, personal email and mobile number

Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.

View contacts for free

Hongyu Zhang is an internist in West Chester, Pennsylvania

Hongyu Zhang practices at Chester County Hospital in West Chester, Pennsylvania, part of University of Pennsylvania.

Hongyu Zhang's NPI, 1609280551, was assigned on June 19, 2014. Hongyu Zhang holds Delaware license C1-0012351.

NPI and contact details
Medicare PAC ID
4587986674
NPI enumeration date
June 19, 2014
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(610) 431-5000
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
50
Medical school graduation
2002

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Hongyu Zhang practices at Chester County Hospital in West Chester, Pennsylvania

Hongyu Zhang's primary practice is Chester County Hospital, at 701 East Marshall Street, West Chester, PA 19380 in Chester County. The practice phone is (610) 431-5000.

Source: Dmand AI Affiliation Data

Hongyu Zhang is affiliated with 6 sites of care and 8 medical groups

Hongyu Zhang's primary practice is Chester County Hospital in West Chester, Pennsylvania, part of University of Pennsylvania. Hongyu Zhang is also affiliated with Hospital of the University of Pennsylvania. The medical group on file is Tower Health Medical Group. Dmand AI also links Hongyu Zhang to 4 more hospitals and 7 medical groups, each named with a free account.

See all 14 affiliations for Hongyu Zhang

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Hongyu Zhang's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Hongyu Zhang practices, 6 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Chester County HospitalAvailable with a free account
+5 more sites and 7 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every hospital where Hongyu Zhang practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across University of Pennsylvania and 6.2K+ hospitals, with verified contacts in the same login.

Hongyu Zhang is one of 5,665 internists in Pennsylvania

Internal medicine is Hongyu Zhang's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Hongyu Zhang is licensed in Delaware.

Specialties and state licenses

  • Internal medicine, DelawarePrimaryLicense C1-0012351 · taxonomy 207R00000X

Internists near Hongyu Zhang

Counts of internists 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

Hongyu Zhang billed Medicare for 708 services in 2024

CMS data shows 708 Medicare services from Hongyu Zhang across 6 procedure codes in 2024, for 456 Medicare patients. Medicare paid $70,192 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024708
Medicare patients456
Paid by Medicare$70,192
Procedure codes6

Hongyu Zhang's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 7882024: 70810%

Hongyu Zhang compared with the Pennsylvania median for internists, 2024

  • Hongyu Zhang
  • Pennsylvania median
Medicare services
708vs 41770% above
Medicare patients
456vs 1852.5 times
Part D claims
14vs 22494% below

Medians across 5,518 internists in Pennsylvania with Dmand AI profiles that report each measure.

Hongyu 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.

See all procedures by Hongyu Zhang

Need commercial claims for Hongyu Zhang?

Medicare shows one payer. Book a meeting to get commercial claims data for Hongyu Zhang and other internists in Pennsylvania.

Book a meeting

Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Hongyu Zhang treated 456 Medicare patients in 2024, average age 77

CMS counts 456 Medicare patients who saw Hongyu Zhang in 2024. The largest group is 75 to 84, with 169 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 13% are also on Medicaid. Their average risk score is 2.32, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Hongyu Zhang's median patient age at 69, with 49% women.

Medicare patients, 2024456
Average age77
Average risk score2.32
Also on Medicaid13%

Hongyu Zhang's Medicare patients by age, 2024

Hongyu Zhang's Medicare patients by sex, 2024

  • Women24554%
  • Men21146%

Chronic conditions among Hongyu Zhang's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Ischemic heart disease56%
  4. Arthritis53%
  5. Chronic kidney disease47%
  6. Mood disorders47%
  7. Depression43%
  8. Anxiety41%

Share of Medicare patients with each condition. A patient can have several.

Hongyu 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 69

Patient panel by sex, all payers

  • Women49%
  • Men49%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Hongyu Zhang wrote 170 Medicare Part D claims in 2024

In 2024, Hongyu Zhang wrote 170 Medicare Part D claims for 71 patients. 92% of them were for generic drugs. CMS names the drug for 14 of them, across 1 drug with 11 or more claims each, at $55 in total drug cost. In 2023, CMS named 101 claims across 5 drugs.

Part D claims, 2024170
Drugs named by CMS1
Total drug cost$55
Part D patients71

Hongyu Zhang's Part D claims by kind of drug, 2024

  • Generic156 claims92%
  • Brand-name14 claims8%

Hongyu 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 Hongyu Zhang's Part D claims, 2024

  • Antibiotics17%29 of 170 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: 1012024: 1486%

Drugs named by CMS: 1 in 2024, 5 in 2023.

See all prescribing by Hongyu Zhang

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 Hongyu Zhang takes part in Medicare

Hongyu 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)

For MedTech and pharma teams

Find internists like Hongyu Zhang by procedure volume and prescribing

Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.

Hongyu Zhang received $110 in industry payments from 2019 to 2023

CMS Open Payments shows 6 general payments to Hongyu Zhang from 5 drug and device companies from 2019 to 2023. Food and beverage make up the largest share, 100% of the total. Alexion Pharmaceuticals, Inc. paid the most, $42.

General payments to Hongyu Zhang by program year, 2019 to 2023

Companies that paid Hongyu Zhang the most, 2019 to 2023

Share is of all general payments to this clinician.

See all payments to Hongyu Zhang

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Hongyu Zhang's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Hongyu 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 Hongyu Zhang's NPI number?

Hongyu Zhang's NPI number is 1609280551. It was assigned on June 19, 2014, and it is active in the NPI Registry.

What does Hongyu Zhang specialize in?

Hongyu Zhang is an internist in West Chester, Pennsylvania. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Hongyu Zhang practice?

Hongyu Zhang practices at 701 East Marshall Street, West Chester, PA 19380. Hongyu Zhang's primary practice is Chester County Hospital in West Chester, Pennsylvania, part of University of Pennsylvania. Dmand AI also links Hongyu Zhang to 4 hospitals and 7 medical groups.

What is Hongyu Zhang's office phone number?

The practice phone on file for Hongyu Zhang is (610) 431-5000.

What is Hongyu Zhang's medical license number?

Hongyu Zhang holds Delaware license C1-0012351.

Which hospitals is Hongyu Zhang affiliated with?

Hongyu Zhang practices at Chester County Hospital in West Chester, Pennsylvania. Hongyu Zhang is also affiliated with Hospital of the University of Pennsylvania. Dmand AI links Hongyu Zhang to 4 more hospitals.

What medical group is Hongyu Zhang part of?

Hongyu Zhang is linked to Tower Health Medical Group. Dmand AI links Hongyu Zhang to 7 more medical groups.

Does Hongyu Zhang accept Medicare?

Yes. CMS data shows Hongyu Zhang billed Medicare for 708 services in 2024, and Hongyu Zhang accepts Medicare assignment.

How many Medicare patients does Hongyu Zhang see?

CMS counts 456 Medicare patients who saw Hongyu Zhang in 2024, with an average age of 77.

What services does Hongyu Zhang bill to Medicare?

In 2024, Hongyu Zhang's most billed Medicare services were hospital inpatient care (99223), hospital inpatient care (99232) and hospital inpatient care (99233).

Show 3 more questionsShow fewer questions

What drugs does Hongyu Zhang prescribe most?

In 2024 Medicare Part D data, Hongyu Zhang's most prescribed drugs by claims were Lisinopril.

Has Hongyu Zhang received payments from drug or device companies?

CMS Open Payments shows $110 in general payments to Hongyu Zhang from 5 companies from 2019 to 2023. The largest total came from Alexion Pharmaceuticals, Inc.

How long has Hongyu Zhang been practicing?

Hongyu Zhang graduated from medical school in 2002, 24 years ago.

Selling to internal medicine practices?

See internists in Pennsylvania by site of care and group

Find the practices, groups and hospitals they work with, and the right people to contact at each.

  • 30 days free
  • Self-serve
  • No credit card

Cookie settings

Turn each category on or off. Your choice is kept for 12 months and you can change it here at any time.

Necessary

Always on. Sign-in, security, downloads you asked for, your cookie choice, and the page that led to a signup.

View cookies (6)
  • dm_consentDmand AI. Your cookie choices and whether your browser sent a Global Privacy Control signal. 12 months.
  • dm_ft, dm_ltDmand AI. The first and the latest page you arrived on, with the date, so a signup is credited to the page that worked. 90 days, 30 days.
  • dm_fs, dm_lsDmand AI. The first and the latest source of a visit (a search engine, a campaign or the site that linked here). 90 days, 30 days.
  • dm_dl, dm_dl_okDmand AI. After you give an email address for a download, lets you download files without being asked again. 30 days.
  • Session and CSRF cookiesDmand AI (app.dmand.ai). Sign-in and form protection in the application. Session.
  • __cf_bm, cf_clearanceCloudflare. Tells people from automated traffic and keeps the site available. 30 minutes; cf_clearance while a security check is valid.

Analytics

On unless you turn it off. How pages are used, in aggregate, and recordings of how pages are used.

View cookies (6)
  • Google Tag ManagerGoogle. Loads the analytics and marketing tags that are on. Sets no cookie of its own and does not load when both categories are off. n/a.
  • _ga, _ga_<container-id>Google Analytics 4. Visits and page views in aggregate on dmand.ai. 2 years.
  • _clck, _clskMicrosoft Clarity. Recordings and heatmaps of how pages are used, with form fields masked. 1 year, 1 day.
  • CLID, MUID, ANONCHK, MR, SMMicrosoft (clarity.ms). Set by Microsoft when Clarity loads, to recognize a browser across sites that use Clarity. Up to 1 year.
  • None (cookieless)Ahrefs Analytics. Page views in aggregate. n/a.
  • ph_<project>_posthogPostHog. Product usage, errors and performance in app.dmand.ai, used to fix bugs and improve features. 365 days.

Marketing

On unless you turn it off, and always off when your browser sends a Global Privacy Control signal. A visitor identification service tells our sales team which companies and people visit.

View cookies (6)
  • _reb2buid, _reb2butkRB2B. Recognizes a returning browser for visitor identification. 360 days, 1 year.
  • _reb2bgeoRB2B. The location used to decide whether a visit can be identified. 20 days.
  • _reb2brefRB2B. The page or site that referred the visit. 15 days.
  • _reb2bfxf, _reb2btd, _reb2bliRB2B. Links the visit to an identified business profile. 1 month.
  • _reb2bresolveRB2B. Holds a match while it is being resolved. 2 days.
  • _reb2sessionID, _reb2bloadedRB2B. The current visit, and a guard against loading the script twice. 30 minutes, 1 second.

Functional

On unless you turn it off. Remembers choices such as a collapsed section.

View cookies (none today)