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KAREN B. BLOOM MD
NPI 1932283009
Internal Medicine in Petaluma, CA

Active since October 25, 2006PECOS Enrolled
3900 LAKEVILLE HWY, PETALUMA, CA 94954(707) 765-3900 Get Directions Write a Review

NPPES record last updated: December 2, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Karen B. Bloom Md NPPES

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

KAREN B. BLOOM MD (NPI 1932283009) is an individual internal medicine provider in Petaluma, California, licensed in California (G62416) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1932283009
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameKAREN B. BLOOMCredential: MD
Location Address3900 LAKEVILLE HWYPetaluma, CA 94954-5698
Mailing Address1800 Harrison St Fl 7Oakland, CA 94612-3466 · (510) 625-6262
Phone(707) 765-3900
Sole ProprietorNo
Enumeration DateOctober 25, 2006
Last NPPES UpdateDecember 2, 2021
✔ NPI 1932283009 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 · G62416
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.
3900 LAKEVILLE HWY, Petaluma, CA 94954
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Other Identifiers 1

Medicaid00G624160CA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Karen B. Bloom Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 94954 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.

DANIEL G WHITE MD
Family Medicine
3900 LAKEVILLE HWY
PETALUMA, CA 94954
Sonoma County (707) 765-3900
DR. ALEKSEY ZAKINOV
Family Medicine
3900 LAKEVILLE HWY
PETALUMA, CA 94954
Sonoma County (707) 765-3960
TIMOTHY M SOWERBY MD
Internal Medicine (Gastroenterology)
3900 LAKEVILLE HWY
PETALUMA, CA 94954
Sonoma County (707) 765-3900
DAN SCHLAGER MD
Emergency Medicine
3900 LAKEVILLE HWY
PETALUMA, CA 94954
Sonoma County (707) 765-3900
PEGGY LOUISE VANPATTEN M.S.
Audiologist
3900 LAKEVILLE HWY
PETALUMA, CA 94954
Sonoma County (707) 765-3516
DR. LINDSEY HIBBARD M.D.
Pediatrics
3900 LAKEVILLE HWY
PETALUMA, CA 94954
Sonoma County (707) 765-3920
MS. LYDIA E ESTEVEZ P,T.
Physical Therapist
3900 LAKEVILLE HWY
PETALUMA, CA 94954
Sonoma County (707) 765-3628
ROBERT M. CARRIGER M.F.T.
Marriage & Family Therapist
3900 LAKEVILLE HWY, KAISER PERMANENTE
PETALUMA, CA 94954
Sonoma County (707) 765-3586

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 Karen Bloom's NPI number?

The NPI number for Karen Bloom is 1932283009. It was assigned to this individual provider in the NPPES registry on October 25, 2006.

Where is Karen Bloom located?

Karen Bloom practices at 3900 Lakeville Hwy, Petaluma, CA 94954. The listed phone number is (707) 765-3900.

What is Karen Bloom's specialty?

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

Is Karen Bloom enrolled in Medicare?

Yes. Karen Bloom is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Karen Bloom was last updated on December 2, 2021. 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.