Tony Chen, MD
NPI 1841720729 · Ophthalmology Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tony Chen, MD is a Ophthalmology Physician provider in Chicago, IL (NPI 1841720729).
Provider details
- NPI number
- 1841720729
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- U0320 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
9 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
5 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ketorolac Tromethamine | 49 | 21 |
| Tobramycin/Dexamethasonebrand: Tobramycin-Dexamethasone | 48 | 44 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 41 | 23 |
| Prednisolone Acetate | 33 | 19 |
| Difluprednate | 27 | 12 |
| Latanoprost | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$16 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (4)
- 827 Linden AveBaltimore, MD 21201Phone: (410) 225-8790
- 2727 W Holcombe BlvdHouston, TX 77025-1669Phone: (713) 442-0000
- 106 Vision Park BlvdShenandoah, TX 77384-3000Phone: (713) 442-1800
- 1010 S Ponds DrWebster, TX 77598-1409Phone: (713) 442-4300
Registry dates
- Enumerated
- 2017-06-14
- Last updated
- 2022-11-02
- Certified
- 2022-11-02
Frequently asked questions
- What is Tony Chen's NPI number?
- Tony Chen's National Provider Identifier (NPI) is 1841720729, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tony Chen's specialty?
- Tony Chen is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Tony Chen located?
- Tony Chen's practice location on file with NPPES is 645 N Michigan Ave Ste 440, Chicago, IL 60611-5899.
- What is Tony Chen's phone number?
- The practice phone number listed in the NPPES registry for Tony Chen is (312) 503-3649.
- Does Tony Chen accept Medicare?
- Tony Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tony Chen's NPI active?
- Yes — Tony Chen's NPI (1841720729) is active in the NPPES registry as of the last update on 2022-11-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.