What is Diana Chu's NPI number?

Diana Chu's National Provider Identifier (NPI) is 1174149207, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Diana Chu's specialty?

Diana Chu is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).

Where is Diana Chu located?

Diana Chu's practice location on file with NPPES is 7500 Greenway Center Dr Ste 300, Greenbelt, MD 20770-3551.

What is Diana Chu's phone number?

The practice phone number listed in the NPPES registry for Diana Chu is (301) 277-4844.

Does Diana Chu accept Medicare?

Diana Chu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Diana Chu's NPI active?

Yes — Diana Chu's NPI (1174149207) is active in the NPPES registry as of the last update on 2020-06-24.

IndividualActiveAccepts Medicare

Diana Chu, OD

NPI 1174149207 · Optometrist · Greenbelt, MD

Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Diana Chu, OD is a Optometrist provider in Greenbelt, MD (NPI 1174149207).

Provider details

NPI number: 1174149207
Entity type: Individual
Primary specialty: OptometristEye and Vision Services Providers
Credential: OD
Sex: Female
Sole proprietor: No
License: TA2737 (MD)

Specialties & taxonomies

OptometristPrimary152W00000XLicense TA2737 (MD)
Eye and Vision Services Providers

Profile Score

Established profile(66/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure25% of score
5 yrs in NPPES registry
Profile completeness25% of score
100% of core fields populated
Practice footprint15% of score
1 documented practice location
Medicare service volume (vs. specialty peers)25% of score
924 Medicare services, 2024 (ranked within specialty)
Open Payments transparency10% of score
Has Open Payments disclosures (2024)

Medicare volume is ranked against active providers in the same specialty. 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 .

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	298	$139
Established Patient Complete Exam of Visual System92014	147	$141
Photography of the Retina92250	143	$41
Imaging of Retina92134	130	$45
Exam of Visual Field With Extended Testing92083	65	$72
Imaging of Optic Nerve92133	60	$39
Placement of Amniotic Membrane on Eye Surface for Wound Healing

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Latanoprost	144	46
Timolol Maleate	65	20
Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol	37	12
Brimonidine Tartrate	34	14
Ofloxacin	30	26
Cyclosporinebrand: Restasis	27	17
Ketorolac Tromethamine	26	18
Prednisolone Acetate

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$4,423 across 27 records (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

7500 Greenway Center Dr Ste 300

Greenbelt, MD 20770-3551

Phone: (301) 277-4844

Street-level locationGet directions

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Mailing address