GERALDINE SLEAN
NPI 1598185662
Ophthalmology in Union City, CA

Q: What is Geraldine Slean's NPI number?

The NPI number for Geraldine Slean is 1598185662. It was assigned to this individual provider in the NPPES registry on April 16, 2014.

Q: What is Geraldine Slean's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Q: When was this NPI record last updated?

The NPPES record for Geraldine Slean was last updated on October 22, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 16, 2014PECOS EnrolledAccepts Medicare Assignment

3553 WHIPPLE RD BLDG B, UNION CITY, CA 94587(510) 675-2020 Get Directions Write a Review

NPPES record last updated: October 22, 2022. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Oct 22, 2022, Dec 17, 2021 (2 updates tracked since 2021).

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About Geraldine Slean NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GERALDINE SLEAN (NPI 1598185662) is an individual ophthalmology provider in Union City, California, licensed in California (A141033) and active in the NPI registry since April 2014. She is enrolled in Medicare PECOS and is a graduate of University Of California, San Francisco School Of Medicine (2014).

NPPES Registry Identity

NPI1598185662

Entity TypeIndividualFemale

Primary Taxonomy207W00000X

Provider Legal NameGERALDINE SLEAN

Location Address3553 WHIPPLE RD BLDG BUnion City, CA 94587-1507

Mailing Address110 Quintas LnMoraga, CA 94556-1631 · (908) 938-8849

Phone(510) 675-2020

Sole ProprietorNo

Medical School CMSUniversity Of California, San Francisco School Of MedicineGraduated 2014

Enumeration DateApril 16, 2014

Last NPPES UpdateOctober 22, 20222 updates tracked since enumeration

NPPES CertifiedOctober 22, 2022

✔ NPI 1598185662 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in CA · A141033

Definition

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.

3553 WHIPPLE RD BLDG B, Union City, CA 94587

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Geraldine Slean is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9335474089

PECOS Enrollment IDI20190717002238

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 16

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

432 services339 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

430 services372 patients

Imaging of optic nerve 92133

Imaging of the optic nerve is a non-invasive procedure that captures detailed pictures of your optic nerve. It helps doctors assess eye health, particularly for conditions like glaucoma. It's painless, quick, and uses safe technology like MRI or OCT (Optical Coherence Tomography).

312 services296 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

161 services161 patients

Measurement of corneal curvature and depth of eye 92136

This procedure measures the shape and depth of your eye, specifically the cornea, the clear front surface. It helps in diagnosing conditions, planning for surgeries, or fitting contact lenses. It's non-invasive and painless.

121 services60 patients

Removal of cataract with insertion of prosthetic lens 66984

This is a procedure where a cloudy lens in your eye, known as a cataract, is removed. After removal, a clear artificial lens is inserted. This helps to restore your vision, enabling you to see clearly again.

97 services67 patients

Exam of the internal drainage system of eye 92020

This is a procedure where your doctor examines the eye's internal drainage system, essential for maintaining eye pressure. They use specialized tools to check for blockages or damage that might lead to conditions like glaucoma. It's non-invasive and painless.

84 services78 patients

Exam of visual field with intermediate testing 92082

An exam of the visual field with intermediate testing is a procedure that checks your peripheral (side) vision. It helps to identify blind spots which could be a sign of eye diseases. This non-invasive test is painless and quick.

78 services77 patients

Ultrasound scan of cornea to determine thickness 76514

An ultrasound scan of the cornea is a non-invasive procedure that uses sound waves to measure the thickness of your cornea. This helps in diagnosing certain eye conditions and planning treatments. No discomfort or pain is typically experienced.

71 services71 patients

Exam of visual field with extended testing 92083

An extended visual field exam is a detailed test to evaluate your peripheral (side) vision. It helps to detect any potential blind spots which may not be noticeable in daily life. These could be caused by eye diseases like glaucoma, or neurological conditions.

59 services57 patients

Imaging of retina 92134

Imaging of the retina is a non-invasive procedure that captures detailed images of your eye's interior. This helps detect conditions like macular degeneration or retinal detachment. It's painless and takes only a few minutes.

53 services51 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

48 services48 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

38 services28 patients

Ct scan of cornea 92025

A CT scan of the cornea is a non-invasive imaging test that uses X-rays to capture detailed pictures of your eye's cornea. It helps in diagnosing diseases or damage, planning for surgery, or evaluating the results of a treatment. It's a safe and painless procedure.

29 services29 patients

Photography of the retina 92250

Photography of the retina, also known as retinal imaging, is a non-invasive procedure that captures images of the back of your eye. This helps doctors identify and monitor conditions like glaucoma, macular degeneration, or diabetic retinopathy. It's painless and quick, often part of a routine eye exam.

27 services26 patients

Removal of recurring cataract in lens capsule using a laser 66821

This procedure, known as YAG laser capsulotomy, treats cloudiness in the lens capsule following cataract surgery. A laser is used to create a small hole in the cloudy capsule, allowing light to pass through and restore clear vision. It's a quick, painless procedure.

24 services23 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94587 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$153.83 typical visit price

range $69.00 – $202.35

Typical copayment $38.45 (range $17.25 – $50.58)

Most-billed visit code 99204

Established Patient

$84.91 typical visit price

range $23.44 – $166.46

Typical copayment $21.22 (range $5.86 – $41.61)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 8

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. ARCHANA UNNIKRISHNAN NAIR M.D.,

Internal Medicine

3553 WHIPPLE RD BLDG B
UNION CITY, CA 94587

Alameda County (510) 675-4714

DR. ISABELLA MARIE BROWN-QUIGLEY AUD

Audiologist

3553 WHIPPLE RD BLDG B
UNION CITY, CA 94587

Alameda County (510) 675-2001

MS. STEPHANIE ADELINE L LARCHULETA SMITH M.S., CCC-SLP

Speech-Language Pathologist

3553 WHIPPLE RD BLDG B
UNION CITY, CA 94587

Alameda County (510) 454-1000

DR. VICKI L. HUGHES O.D.

Optometrist

3553 WHIPPLE RD BLDG B, KAISER PERMANENTE, OPTOMETRY
UNION CITY, CA 94587

Alameda County (510) 675-4577

MRS. LUCIA CAROLINA MEZA CASTRO M.S., CCC-SLP

Speech-Language Pathologist

3553 WHIPPLE RD BLDG B
UNION CITY, CA 94587

Alameda County (510) 875-4241

JOY LEONG RCP, RRT

Respiratory Therapist, Registered

3553 WHIPPLE RD BLDG B
UNION CITY, CA 94587

Alameda County (510) 675-2757

DR. TRISHA ANN GARCIA-HERRON O.D.

Optometrist

3553 WHIPPLE RD BLDG B
UNION CITY, CA 94587

Alameda County (510) 675-3034

DR. STEPHEN THOMAS YEE O.D.

Optometrist

3553 WHIPPLE RD BLDG B
UNION CITY, CA 94587

Alameda County (510) 675-2020

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Geraldine Slean's NPI number?

The NPI number for Geraldine Slean is 1598185662. It was assigned to this individual provider in the NPPES registry on April 16, 2014.

Where is Geraldine Slean located?

Geraldine Slean practices at 3553 Whipple Rd Bldg B, Union City, CA 94587. The listed phone number is (510) 675-2020.

What is Geraldine Slean's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Is Geraldine Slean enrolled in Medicare?

Yes. Geraldine Slean is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Geraldine Slean was last updated on October 22, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.