What is Jessy Ung's NPI number?

Jessy Ung's National Provider Identifier (NPI) is 1639697584, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Jessy Ung's specialty?

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

Where is Jessy Ung located?

Jessy Ung's practice location on file with NPPES is 13531 Connecticut Ave, Silver Spring, MD 20906-2912.

What is Jessy Ung's phone number?

The practice phone number listed in the NPPES registry for Jessy Ung is (301) 438-0555.

Does Jessy Ung accept Medicare?

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

Is Jessy Ung's NPI active?

Yes — Jessy Ung's NPI (1639697584) is active in the NPPES registry as of the last update on 2022-07-21.

IndividualActiveAccepts Medicare

Jessy Ung, OD

NPI 1639697584 · Optometrist · Silver Spring, MD

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

Jessy Ung, OD is a Optometrist provider in Silver Spring, MD (NPI 1639697584).

Provider details

NPI number: 1639697584
Entity type: Individual
Primary specialty: OptometristEye and Vision Services Providers
Credential: OD
Sex: Male
Sole proprietor: Yes
License: TA2605 (MD)

Specialties & taxonomies

OptometristPrimary152W00000XLicense TA2605 (MD)
Eye and Vision Services Providers
Optometrist152W00000XLicense OPC5478 (FL)
Eye and Vision Services Providers

Profile Score

Detailed profile(79/100 index)

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

Registry tenure38% of score
8 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
4 documented practice locations

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.

Practice location

13531 Connecticut Ave

Silver Spring, MD 20906-2912

Phone: (301) 438-0555

Fax: (301) 438-0556

Street-level locationGet directions

More MD providers

Mailing address

1950 Old Gallows Rd Ste 520

Vienna, VA 22182-3970

Additional practice locations (3)

7077 Normandy Blvd Ste 7
Jacksonville, FL 32205-6294
Phone: (904) 781-7717
Fax: (904) 781-6367
12200 Annapolis Rd Ste 116
Glenn Dale, MD 20769-9182
Phone: (301) 805-4664
13621 Creekside Dr
Silver Spring, MD 20904-5401
Phone: (301) 646-0331

Enumerated: 2017-08-30
Last updated: 2022-07-21

Frequently asked questions

What is Jessy Ung's NPI number?: Jessy Ung's National Provider Identifier (NPI) is 1639697584, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Jessy Ung's specialty?: Jessy Ung is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
Where is Jessy Ung located?: Jessy Ung's practice location on file with NPPES is 13531 Connecticut Ave, Silver Spring, MD 20906-2912.
What is Jessy Ung's phone number?: The practice phone number listed in the NPPES registry for Jessy Ung is (301) 438-0555.
Does Jessy Ung accept Medicare?: Jessy Ung is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Jessy Ung's NPI active?: Yes — Jessy Ung's NPI (1639697584) is active in the NPPES registry as of the last update on 2022-07-21.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.