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MICHAEL LEE DITMARS MD
NPI 1265440101
Surgery in Antioch, CA

Active since August 04, 2006PECOS EnrolledAccepts Medicare Assignment
3903 LONE TREE WAY, SUITE 210, ANTIOCH, CA 94509(925) 757-0800(925) 757-2160 Get Directions Write a Review

NPPES record last updated: December 1, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Michael Lee Ditmars Md NPPES

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

MICHAEL LEE DITMARS MD (NPI 1265440101) is an individual surgery provider in Antioch, California, licensed in California (G080207) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, San Francisco School Of Medicine (1993).

NPPES Registry Identity

NPI1265440101
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameMICHAEL LEE DITMARSCredential: MD
Location Address3903 LONE TREE WAY, SUITE 210Antioch, CA 94509-6249
Mailing Address3903 Lone Tree Way, Suite 210Antioch, CA 94509-6249 · (925) 757-0800 · Fax (925) 757-2160
Phone(925) 757-0800
Fax(925) 757-2160
Sole ProprietorNo
Medical School CMSUniversity Of California, San Francisco School Of MedicineGraduated 1993
Enumeration DateAugust 4, 2006
Last NPPES UpdateDecember 1, 2021
✔ NPI 1265440101 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in CA · G080207
Definition

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

3903 LONE TREE WAY, Antioch, CA 94509
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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

Michael Lee Ditmars 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 ID1951399849
PECOS Enrollment IDI20040907000508
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 94509 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
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
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 14

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

DR. LAUREN SHIRVANEE D.O.
General Practice
3903 LONE TREE WAY, SUITE 210
ANTIOCH, CA 94509
Contra Costa County (925) 754-7866
FULL CARE MEDICAL GROUP, INC.
Family Medicine
3903 LONE TREE WAY, SUITE 104
ANTIOCH, CA 94509
Contra Costa County (925) 755-1255
SUMNER SEIBERT M.D.
Orthopaedic Surgery
3903 LONE TREE WAY, SUITE 305
ANTIOCH, CA 94509
Contra Costa County (925) 754-5254
DR. HAMIDREZA M KHONSARI M.D.
Family Medicine
3903 LONE TREE WAY, SUITE 104
ANTIOCH, CA 94509
Contra Costa County (925) 755-1255
JENNY F JEW M.D.
Internal Medicine (Gastroenterology)
3903 LONE TREE WAY, STE 205
ANTIOCH, CA 94509
Contra Costa County (925) 754-8710
DENNIS ZAI, M.D., INC
Internal Medicine (Gastroenterology)
3903 LONE TREE WAY, SUITE 205
ANTIOCH, CA 94509
Contra Costa County (925) 784-8710
SABRI E. SEN, M.D., INC.
Urology
3903 LONE TREE WAY, SUITE 310
ANTIOCH, CA 94509
Contra Costa County (612) 812-4431
EAST BAY SURGICAL ASSOCIATES, A MEDICAL CORPORATION
Surgery
3903 LONE TREE WAY, SUITE 210
ANTIOCH, CA 94509
Contra Costa County (925) 757-0800

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 Ditmars's NPI number?

The NPI number for Michael Ditmars is 1265440101. It was assigned to this individual provider in the NPPES registry on August 4, 2006.

Where is Michael Ditmars located?

Michael Ditmars practices at 3903 Lone Tree Way Suite 210, Antioch, CA 94509. The listed phone number is (925) 757-0800.

What is Michael Ditmars's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Michael Ditmars enrolled in Medicare?

Yes. Michael Ditmars 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 Michael Ditmars was last updated on December 1, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.