Individual provider

Jo Ann Giaconi, MD

Ophthalmology Physician Medicare enrolled

Jo Ann Giaconi, MD is an Ophthalmology Physician in Los Angeles, CA, registered under NPI 1639182223.

Getting there

The practice address on file is 100 STEIN PLZ STE 2-235, Los Angeles, CA 90095. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

100 STEIN PLZ STE 2-235, Los Angeles, CA 90095 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
A69916 CA Ophthalmology Physician primary

This provider holds licence A69916 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Ophthalmology
PAC ID
1355239500
Enrollment ID
I20040309000405

Medicare enrolment is recorded as approved under the provider type Practitioner - Ophthalmology. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

What Ophthalmology covers

An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses. NUCC Health Care Provider Taxonomy, code 207W00000X
Allopathic & Osteopathic Physicians Ophthalmology

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1639182223 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateAug 14, 2006
Last updatedJan 15, 2025
StatusActive
Sole proprietorNo
GenderFemale
CredentialMD
Practice address 100 STEIN PLZ STE 2-235
Los Angeles, CA 90095
(310) 794-9442
Fax (310) 794-5541
Mailing address 5767 W CENTURY BLVD STE 400
Los Angeles, CA 90045
Other identifiers 00A699160 · Medicaid (CA)
M050376 · Other (CA)
This record was updated on Jan 15, 2025, which is recent enough that the contact details are likely still accurate.

Number check

1639182223 passes the NPI check digit test The final digit 3 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 6 3 9 1 8 2 2 2
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 6 6 9 2 8 4 2 4

Sum = 67 · next multiple of 10 = 70 · check digit = 3 · actual last digit = 3

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1639182223?
NPI 1639182223 is the National Provider Identifier assigned to Jo Ann Giaconi, MD in Los Angeles, CA. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Ophthalmology Physician cover?
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the…
How do I contact Jo Ann Giaconi, MD?
The phone number on file with NPPES is (310) 794-9442, last updated Jan 15, 2025. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Does Jo Ann Giaconi, MD accept Medicare?
This NPI has an approved Medicare enrolment in PECOS, which means the provider is enrolled to bill Medicare. Enrolment does not guarantee they are accepting new Medicare patients — verify directly with the office.
Is NPI 1639182223 a valid number?
Yes. 1639182223 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.