DR. ANDREW RICHARD JR. DE MAR (M.D.) – Surgery Physician, NPI 1891716023

DR. ANDREW RICHARD JR. DE MAR (M.D.) is a healthcare provider. based in Rocklin, California. specializing in GENERAL SURGERY. They hold the professional credentials M.D.. They hold a License No. G58869 (CA). The NPI Number for DR. ANDREW RICHARD JR. DE MAR (M.D.) is 1891716023

Main info

Male
Sole Proprietor
41 Years Of Experience
Accepts Medicare Assignment
Name
DR. ANDREW RICHARD JR. DE MAR (M.D.)
NPI
1891716023
Phone
(916) 797-7534
Address
PO BOX 2366
Enumeration Date
22 July 2006
Last Update Date
14 April 2009

Doctor Profile

Medical School Name
OHIO STATE UNIVERSITY COLLEGE OF MEDICINE
Secondary Phone
9167977534
Graduation Year
1985 (41 years ago)
PAC ID
1951337633
Professional Enrollment ID
I20060214000605
Address ID
CA956613051RO2XXXXDRXX402
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience62
Completeness75
Years active:19State licenses:1Digital endpointsOther names

3,317 GENERAL SURGERY in CA

Loading map...

Provider Addresses for DR. ANDREW RICHARD JR. DE MAR (M.D.)

  • Rocklin Post Office, Pacific Street, Rocklin, Placer County, California, 95677, United States

    ROCKLIN, CA 956778366

    Phone: (916) 797-7534

    Fax: (916) 797-4712

    Type: Mailing

  • 2, Medical Plaza Drive, Roseville, Placer County, California, 95661, United States

    SUITE 275

    ROSEVILLE, CA 956613043

    Phone: (916) 797-7534

    Fax: (916) 797-4712

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

Loading prescription activity...

Open Payments (CMS)

CMS reports 1 Open Payments records for all available years, with a total value of $21.

Total Amount is formed as General ($21) + Research ($0) + Ownership ($0) = $21.

Last reported payment date: 2024-03-11 • Largest payer in this snapshot: Microline Surgical Inc ($21).

Total Amount

$21

General + Research + Ownership

Payments

1

Total payment records

General Amount

$21

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-03-11

Latest reported date

Top Companies

Largest payers in this snapshot

CompanyAmount
Microline Surgical Inc$21
View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2006-02-14

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20060214000605IGeneral SurgeryCATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99232Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes184158$0
99222Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes9693$0
99203New patient office or other outpatient visit, 30-44 minutes2525$0
99223Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes2020$0
47562Removal of gallbladder using an endoscope1616$0
View full utilization report →

Insurance plans in this area (ZIP 95677)

Loading plans...

Reviews

All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.

No reviews yet. Be the first to share your experience — your opinion helps families compare providers.

Frequently asked questions

Is there an official ID for DR. ANDREW RICHARD JR. DE MAR (M.D.) in U.S. healthcare records?
The official identifier for DR. ANDREW RICHARD JR. DE MAR (M.D.) is NPI 1891716023.
Is DR. ANDREW RICHARD JR. DE MAR (M.D.) shown as active in public data?
Registry records indicate DR. ANDREW RICHARD JR. DE MAR (M.D.) maintains an active NPI.
What area of care is associated with DR. ANDREW RICHARD JR. DE MAR (M.D.)?
DR. ANDREW RICHARD JR. DE MAR (M.D.)'s record emphasizes Surgery Physician. Clinical services aligned with this taxonomy classification.
What locale is associated with DR. ANDREW RICHARD JR. DE MAR (M.D.)?
Directory geography for DR. ANDREW RICHARD JR. DE MAR (M.D.) centers on Rocklin, California.
Does DR. ANDREW RICHARD JR. DE MAR (M.D.) accept insurance?
Insurance participation is not part of the core NPI extract — call the plan or office to confirm.

Similar Providers

THERESA GERTRUDE ZOGAKIS (MD)

Surgical Oncology Physician
414 G ST STE 120
NPI: 1255394938
Sutter Roseville Medical Center, 1, Medical Plaza Drive, Roseville, Placer County, California, 95661, United States
NPI: 1952322083

DR. PHILIP BOSCO (M.D.)

Surgery Physician
Sutter Roseville Medical Center, 1, Medical Plaza Drive, Roseville, Placer County, California, 95661, United States
NPI: 1376566422
PO BOX 96123
NPI: 1093059248