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DR. DANIEL ADAM GRENINGER M.D.
NPI 1861666059
Ophthalmology in Antioch, CA

Active since April 17, 2008PECOS EnrolledAccepts Medicare Assignment
4501 SAND CREEK RD, ANTIOCH, CA 94531(925) 813-3349(925) 813-3341 Get Directions Write a Review

NPPES record last updated: January 13, 2022. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Daniel Adam Greninger M.d. NPPES

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

DR. DANIEL ADAM GRENINGER M.D. (NPI 1861666059) is an individual ophthalmology provider in Antioch, California, licensed in California (A109166) and active in the NPI registry since April 2008. He is enrolled in Medicare PECOS and is a graduate of Js Weill Medical College, Cornell University (2008).

NPPES Registry Identity

NPI1861666059
Entity TypeIndividualMale
Primary Taxonomy207W00000X
Provider Legal NameDR. DANIEL ADAM GRENINGERCredential: M.D.
Location Address4501 SAND CREEK RDAntioch, CA 94531-8687
Mailing Address4501 Sand Creek RdAntioch, CA 94531-8687 · (925) 813-3349 · Fax (925) 813-3341
Phone(925) 813-3349
Fax(925) 813-3341
Sole ProprietorYes
Medical School CMSJs Weill Medical College, Cornell UniversityGraduated 2008
Enumeration DateApril 17, 2008
Last NPPES UpdateJanuary 13, 2022
NPPES CertifiedJanuary 13, 2022
✔ NPI 1861666059 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
Licenses✔ Licensed in CA · A109166✔ Licensed in OR · MD157095
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.
4501 SAND CREEK RD, Antioch, CA 94531
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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

Dr. Daniel Adam Greninger M.d. 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 ID4486817855
PECOS Enrollment IDI20140129001632
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94531 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 20

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

KRISTEN ASAKO SHIMODA PHARMD
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
4501 SAND CREEK RD
ANTIOCH, CA 94531
Contra Costa County (925) 813-7280
DR. KAUSALYA CHENNAPRAGADA BHASKARABHATLA M.D.
Internal Medicine
4501 SAND CREEK RD
ANTIOCH, CA 94531
Contra Costa County (925) 813-6500
JEFFREY ROBERT CHAVEZ PA-C
Physician Assistant
4501 SAND CREEK RD
ANTIOCH, CA 94531
Contra Costa County (925) 389-7719
DR. JAMES FRANCIS CHAN M.D.
Hospitalist
4501 SAND CREEK RD
ANTIOCH, CA 94531
Contra Costa County (925) 813-6500
JACOB FREDRICKSON DPT
Physical Therapist
4501 SAND CREEK RD
ANTIOCH, CA 94531
Contra Costa County (925) 813-6500
MENG HAO
Pharmacist
4501 SAND CREEK RD
ANTIOCH, CA 94531
Contra Costa County (925) 813-6500
TIMOTHY VAN PHAN
Pharmacist
4501 SAND CREEK RD
ANTIOCH, CA 94531
Contra Costa County (925) 813-6500
SHARON ANN LEWIS RRT
Respiratory Therapist, Registered
4501 SAND CREEK RD
ANTIOCH, CA 94531
Contra Costa County (925) 813-6700

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 Daniel Greninger's NPI number?

The NPI number for Daniel Greninger is 1861666059. It was assigned to this individual provider in the NPPES registry on April 17, 2008.

Where is Daniel Greninger located?

Daniel Greninger practices at 4501 Sand Creek Rd, Antioch, CA 94531. The listed phone number is (925) 813-3349.

What is Daniel Greninger's specialty?

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

Is Daniel Greninger enrolled in Medicare?

Yes. Daniel Greninger 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 Daniel Greninger was last updated on January 13, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.