1. Home
  2. Directory
  3. California
  4. Santa Rosa
  5. Internal Medicine
  6. NPI Profile

TIMOTHY LOUIS GIESEKE M.D.
NPI 1992703706
Internal Medicine in Santa Rosa, CA

Active since July 14, 2005PECOS Enrolled
3536 MENDOCINO AVE, 300, SANTA ROSA, CA 95403(707) 546-2180(707) 546-2188 Get Directions Write a Review

NPPES record last updated: February 7, 2012. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Timothy Louis Gieseke M.d. NPPES

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

TIMOTHY LOUIS GIESEKE M.D. (NPI 1992703706) is an individual internal medicine provider in Santa Rosa, California, licensed in California (G34398) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS and is a graduate of University Of California, Irvine, California College Of Medicine (1976).

NPPES Registry Identity

NPI1992703706
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameTIMOTHY LOUIS GIESEKECredential: M.D.
Location Address3536 MENDOCINO AVE, 300Santa Rosa, CA 95403-3634
Mailing Address3536 Mendocino Ave, Ste 200Santa Rosa, CA 95403-3634 · (707) 575-6049 · Fax (707) 546-2188
Phone(707) 546-2180
Fax(707) 546-2188
Sole ProprietorNo
Medical School CMSUniversity Of California, Irvine, California College Of MedicineGraduated 1976
Enumeration DateJuly 14, 2005
Last NPPES UpdateFebruary 7, 2012
✔ NPI 1992703706 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · G34398
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
3536 MENDOCINO AVE, Santa Rosa, CA 95403
Open in Google Maps ↗

Other Identifiers 7

Medicare UPINA89573CA
Medicaid00G343980CA
Medicare PINEZ122ZCA
Medicare PIN00G343982CA
Other00G343980CA · Blue Shield Of California
OtherP00602516CA · Raildroad Medicare
Medicare PIN00G343981CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Timothy Louis Gieseke M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID4880604768
PECOS Enrollment IDI20060424000225
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 4

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.

Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more 99308
A follow-up nursing facility visit per day is a daily check-up service provided by healthcare professionals. It lasts around 15 minutes and involves assessing your health status, monitoring your recovery progress, and addressing any concerns you may have about your health or treatment.
75 services34 patients
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309
A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.
41 services25 patients
Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more 99306
An initial nursing facility visit is your first meeting with your healthcare team at a nursing facility. Lasting typically 45 minutes, this appointment involves a comprehensive health assessment and the creation of your personalized care plan. It's a crucial step to ensure your health and well-being.
24 services22 patients
Nursing facility discharge management, more than 30 minutes 99316
Nursing facility discharge management over 30 minutes is a comprehensive process where a healthcare team prepares you for leaving the facility. It involves creating a tailored plan, coordinating care, and ensuring a smooth transition to your next care setting.
17 services17 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95403 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
$142.00 typical visit price
range $63.04 – $187.01
Typical copayment $35.50 (range $15.76 – $46.75)
Most-billed visit code 99204
Established Patient
$109.88 typical visit price
range $21.02 – $153.40
Typical copayment $27.47 (range $5.25 – $38.35)
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 20

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

DR. RANOLPH DUANE RUSH DDS
Dentist (Endodontics)
3536 MENDOCINO AVE, SUITE #330
SANTA ROSA, CA 95403
Sonoma County (707) 545-4104
SHALINI YALAMANCHI MD
Ophthalmology
3536 MENDOCINO AVE, STE. 380
SANTA ROSA, CA 95403
Sonoma County (707) 523-7726
PARUL KOHLI M.D.
Internal Medicine
3536 MENDOCINO AVE, STE 300
SANTA ROSA, CA 95403
Sonoma County (707) 546-2180
DEBORAH ANN MAGEE NP
Nurse Practitioner (Family)
3536 MENDOCINO AVE, SUITE 200
SANTA ROSA, CA 95403
Sonoma County (707) 573-6166
NORTHERN CALIFORNIA MEDICAL ASSOC INC
Internal Medicine
3536 MENDOCINO AVE, STE 300
SANTA ROSA, CA 95403
Sonoma County (707) 573-6942
DR. DENISE KAYSER M.D.
Ophthalmology (Retina Specialist)
3536 MENDOCINO AVE, STE 380
SANTA ROSA, CA 95403
Sonoma County (707) 575-5353
EMINE C. LOXLEY DMD, PC
Clinic/Center (Dental)
3536 MENDOCINO AVE, SUITE 330
SANTA ROSA, CA 95403
Sonoma County (707) 545-4104
DR. VISHAL GHANSHYAM PATEL M.D.
Internal Medicine (Interventional Cardiology)
3536 MENDOCINO AVE, STE 200
SANTA ROSA, CA 95403
Sonoma County (707) 573-6166

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 Timothy Gieseke's NPI number?

The NPI number for Timothy Gieseke is 1992703706. It was assigned to this individual provider in the NPPES registry on July 14, 2005.

Where is Timothy Gieseke located?

Timothy Gieseke practices at 3536 Mendocino Ave 300, Santa Rosa, CA 95403. The listed phone number is (707) 546-2180.

What is Timothy Gieseke's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Timothy Gieseke enrolled in Medicare?

Yes. Timothy Gieseke is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Timothy Gieseke was last updated on February 7, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.