DR. MARK HAROLD KOGAN M.D.
NPI 1780690313
Internal Medicine - Gastroenterology in San Pablo, CA

Q: What is Mark Kogan's NPI number?

The NPI number for Mark Kogan is 1780690313. It was assigned to this individual provider in the NPPES registry on August 1, 2006.

Q: What is Mark Kogan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Mark Kogan was last updated on March 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months 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

2089 VALE RD, SUITE 33, SAN PABLO, CA 94806(510) 234-5012(510) 234-4921 Get Directions Write a Review

NPPES record last updated: March 11, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Dr. Mark Harold Kogan M.d. NPPES

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

DR. MARK HAROLD KOGAN M.D. (NPI 1780690313) is an individual gastroenterology provider in San Pablo, California, licensed in California (G60809) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Berkeley, and is a graduate of Northwestern University Feinberg Medical School (1980).

NPPES Registry Identity

NPI1780690313

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameDR. MARK HAROLD KOGANCredential: M.D.

Location Address2089 VALE RD, SUITE 33San Pablo, CA 94806-3847

Mailing Address2089 Vale Rd, Suite 33San Pablo, CA 94806-3847 · (510) 234-5012 · Fax (510) 234-4921

Phone(510) 234-5012

Fax(510) 234-4921

Sole ProprietorNo

Medical School CMSNorthwestern University Feinberg Medical SchoolGraduated 1980

Enumeration DateAugust 1, 2006

Last NPPES UpdateMarch 11, 2025

NPPES CertifiedMarch 11, 2025

✔ NPI 1780690313 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in CA · G60809

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

2089 VALE RD, San Pablo, CA 94806

Open in Google Maps ↗

Secondary Practice Location 1

Location 12450 Ashby AveBerkeley, CA 94705-2067 · Phone (510) 204-4444

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. Mark Harold Kogan 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 ID3870560840

PECOS Enrollment IDI20040910000738

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 14

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.

Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month 99439

Chronic Care Management services involve regular check-ins with healthcare professionals to manage two or more chronic conditions. It includes an additional 20 minutes of clinical staff time per month, directed by a healthcare professional, to ensure optimal health management.

1,109 services87 patients

Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 99490

Chronic care management services involve a healthcare professional directing clinical staff in managing your chronic conditions. This includes the first 20 minutes per month of services like medication management, care coordination, and health monitoring to help improve your health and quality of life.

641 services87 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.

122 services87 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.

118 services96 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.

89 services89 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

79 services77 patients

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

63 services63 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

54 services54 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.

50 services50 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

43 services24 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

25 services25 patients

Diagnostic exam of large bowel using a flexible endoscope 45378

This procedure, known as a colonoscopy, involves using a flexible tube with a light and camera to examine the large intestine. It helps detect any abnormalities such as polyps or inflammation. It's a standard procedure to ensure gut health.

13 services13 patients

Ultrasound scan of organ tissue for measuring elasticity 76981

An ultrasound scan of organ tissue measures elasticity, or flexibility. This non-invasive procedure uses sound waves to create images of the inside of your body. It helps in assessing the health of various organs by detecting changes in their stiffness or softness.

13 services13 patients

Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk G0121

Colorectal cancer screening, such as a colonoscopy, is a preventive measure to detect early signs of cancer in the large intestine. For individuals not at high risk, it's typically recommended at age 50. A small, flexible tube with a camera is used to examine your colon. It's a safe, effective way to catch issues early.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94806 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

$119.48 typical visit price

range $23.44 – $166.46

Typical copayment $29.87 (range $5.86 – $41.61)

Most-billed visit code 99214

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 19

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

DR. TERESA MARIE VAN WOY DPM

Podiatrist (Primary Podiatric Medicine)

2089 VALE RD, 12
SAN PABLO, CA 94806

Contra Costa County (510) 232-0892

DR. KHOSROW AFSARI FACP MD

Internal Medicine

2089 VALE RD, #21
SAN PABLO, CA 94806

Contra Costa County (510) 232-9065

WILLIAM ALBERT VAN DYK DDS

Dentist (General Practice)

2089 VALE RD, SUITE 30
SAN PABLO, CA 94806

Contra Costa County (510) 236-1662

ROBERT G. CLARK M.D.

Family Medicine

2089 VALE RD, SUITE 17
SAN PABLO, CA 94806

Contra Costa County (510) 237-2802

MARK SILVERT MD

Specialist

2089 VALE RD, SUITE 25
SAN PABLO, CA 94806

Contra Costa County (510) 235-1137

DR. JACQUELINE JEEYUNG PARK M.D.

Internal Medicine (Gastroenterology)

2089 VALE RD, SUITE 33
SAN PABLO, CA 94806

Contra Costa County (510) 234-5012

DR. MAHSA JABERIANSARI DDS

Dentist (General Practice)

2089 VALE RD, SUITE 15 AND 16
SAN PABLO, CA 94806

Contra Costa County (415) 746-9412

RAYNATO OCAMPO CASTRO JR. D.D.S.

Dentist (General Practice)

2089 VALE RD, STE 30
SAN PABLO, CA 94806

Contra Costa County (510) 236-1662

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 Mark Kogan's NPI number?

The NPI number for Mark Kogan is 1780690313. It was assigned to this individual provider in the NPPES registry on August 1, 2006.

Where is Mark Kogan located?

Mark Kogan practices at 2089 Vale Rd Suite 33, San Pablo, CA 94806. The listed phone number is (510) 234-5012.

What is Mark Kogan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Mark Kogan enrolled in Medicare?

Yes. Mark Kogan 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 Mark Kogan was last updated on March 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months 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.