MICHAEL J DRINNAN MD
NPI 1609883024
Ophthalmology in San Mateo, CA

Q: What is Michael Drinnan's NPI number?

The NPI number for Michael Drinnan is 1609883024. It was assigned to this individual provider in the NPPES registry on August 1, 2006.

Q: What is Michael Drinnan'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 Michael Drinnan was last updated on October 23, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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 August 01, 2006PECOS EnrolledAccepts Medicare Assignment

73.69/100

CMS Quality Rating

101 S SAN MATEO DR, SUITE 310, SAN MATEO, CA 94401(650) 342-7474(650) 342-9260 Get Directions Write a Review

NPPES record last updated: October 23, 2007. Verified against the NPPES registry weekly; last sync: August 23, 2026.

On this page

About Michael J Drinnan Md NPPES

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

MICHAEL J DRINNAN MD (NPI 1609883024) is an individual ophthalmology provider in San Mateo, California, licensed in California (G50381) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1982).

NPPES Registry Identity

NPI1609883024

Entity TypeIndividualMale

Primary Taxonomy207W00000X

Provider Legal NameMICHAEL J DRINNANCredential: MD

Location Address101 S SAN MATEO DR, SUITE 310San Mateo, CA 94401-3819

Mailing Address101 S San Mateo Dr, Suite 310San Mateo, CA 94401-3819 · (650) 342-7474 · Fax (650) 342-9260

Phone(650) 342-7474

Fax(650) 342-9260

Sole ProprietorNo

Medical School CMSOtherGraduated 1982

Enumeration DateAugust 1, 2006

Last NPPES UpdateOctober 23, 2007

✔ NPI 1609883024 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in CA · G50381

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.

101 S SAN MATEO DR, San Mateo, CA 94401

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Other Identifiers 2

Medicare UPINA51661CA

Medicare PIN00G503810CA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.Insurance ›

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

Michael J Drinnan Md 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 ID5193778363

PECOS Enrollment IDI20080718000611

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 13

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 complete exam of visual system 92014

An established patient complete exam of the visual system involves a thorough check of your eyes and vision. It assesses eye health, checks for diseases, and measures your ability to see clearly at different distances. It's a routine, non-invasive procedure.

340 services325 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.

208 services203 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.

137 services117 patients

Established patient problem focused exam of visual system 92012

This is a routine check-up for existing patients focusing on the visual system. It involves examining your eyes to detect any potential issues or changes in your vision. It's a crucial part of maintaining good eye health.

91 services85 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.

75 services49 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.

48 services47 patients

New patient complete exam of visual system 92004

A new patient complete exam of the visual system is a thorough evaluation of your eyes and vision. It checks for any potential issues and assesses overall eye health. It includes tests for visual acuity, eye movement, and light response.

41 services41 patients

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.

40 services37 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).

39 services39 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.

29 services23 patients

Complex removal of cataract with insertion of prosthetic lens 66982

This procedure involves removing a cloudy lens (cataract) from your eye and replacing it with a clear, artificial lens. It helps restore vision that has been affected by the cataract. The operation is usually done under local anesthesia.

21 services19 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.

21 services21 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.

17 services17 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94401 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

73.69/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

100

Promoting Interoperability

Improvement Activities

Cost

16.48

Other Providers at the Same Location NPPES 20

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

DR. ALLA SRAGETS M.D.

Obstetrics & Gynecology

101 S SAN MATEO DR, SUITE 112
SAN MATEO, CA 94401

San Mateo County (650) 344-7799

SAN MATEO RHEUMATOLOGY INC.

Internal Medicine (Rheumatology)

101 S SAN MATEO DR, SUITE 307
SAN MATEO, CA 94401

San Mateo County (650) 348-6011

DR. WILLIAM REEVES TATOMER MD

Psychiatry & Neurology (Psychiatry)

101 S SAN MATEO DR, SUITE 300
SAN MATEO, CA 94401

San Mateo County (650) 342-4442

DR. ROMMEL HINDOCHA D.C.

Chiropractor

101 S SAN MATEO DR, SUITE 200
SAN MATEO, CA 94401

San Mateo County (650) 347-2225

DALE JACKNOW

Pediatrics (Developmental - Behavioral Pediatrics)

101 S SAN MATEO DR, SUITE 208
SAN MATEO, CA 94401

San Mateo County (650) 342-3137

DR. CATRINA PATRICIA BLAKE FNP

Nurse Practitioner

101 S SAN MATEO DR
SAN MATEO, CA 94401

San Mateo County (650) 755-6400

DR. DALE JOSEPH RITZO M.D.

Internal Medicine

101 S SAN MATEO DR, SUITE 206
SAN MATEO, CA 94401

San Mateo County (650) 343-4003

AARON KWAN O.D.

Optometrist

101 S SAN MATEO DR, SUITE 310
SAN MATEO, CA 94401

San Mateo County (408) 807-8540

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 Michael Drinnan's NPI number?

The NPI number for Michael Drinnan is 1609883024. It was assigned to this individual provider in the NPPES registry on August 1, 2006.

Where is Michael Drinnan located?

Michael Drinnan practices at 101 S San Mateo Dr Suite 310, San Mateo, CA 94401. The listed phone number is (650) 342-7474.

What is Michael Drinnan's specialty?

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

Is Michael Drinnan enrolled in Medicare?

Yes. Michael Drinnan 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.

What insurance does Michael Drinnan accept?

Health plans from Providence Health Plan list Michael Drinnan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Michael Drinnan was last updated on October 23, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.