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Source: CMS NPI registry

GLP‑1Centers

Irina Kolomey, DO

Internal Medicine

NPI verified
Practice location
1804 San Miguel Dr, Walnut Creek, CA 94596 View on map →
Contact
(925) 363-3395 Fax (877) 569-2007
NPI number
1104062173
Provider type
Individual provider · registered 2008 (18 years in the registry)
State license
CA · 20A10625

Additional locations

  • 2350 Country Hills Dr Ste B, Antioch, CA 94509(925) 363-3395

Registered specialties

  • Internal Medicine, Hospice and Palliative Medicine
  • Preventive Medicine, Obesity Medicine
  • Internal Medicine

Record provenance

Details are drawn from this provider's public record in the CMS National Provider Identifier registry, which CMS last updated on November 17, 2025. Registry specialty indicates the care a provider is registered to deliver — it is not confirmation that this practice currently prescribes GLP‑1 medications. Call to confirm current services, availability, and pricing.

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Primary care and GLP-1 treatment

Family and internal medicine providers manage weight as part of whole-person care. A primary-care-based GLP-1 program can be a good fit if you want your weight, labs, blood pressure, and other medications managed in one place — and it often simplifies insurance coverage.

Asking about GLP‑1 treatment at Irina Kolomey

Call (925) 363-3395 and ask these questions before booking:

  • ✓Do you currently prescribe GLP‑1 medications (semaglutide or tirzepatide) for weight loss?
  • ✓Do you work with my insurance, or is the program cash-pay — and what does a month cost all-in?
  • ✓Is the medication a brand-name product, or compounded by a compounding pharmacy?
  • ✓What follow-up is included for dose changes and side effects?

About compounded medications: A compounded drug is prepared by a state-licensed compounding pharmacy. Compounded drugs are not FDA-approved and are not reviewed by the FDA for safety, effectiveness, or quality, and they are not the same as FDA-approved generic drugs. Ask any practice which it dispenses and which pharmacy prepares it.

Other GLP‑1 providers in Walnut Creek

See all 9 clinics in Walnut Creek →