NPPES file of Aug 9, 2026

Sandra Karpenko, M.D.

Hospice and Palliative Medicine (Internal Medicine) Physician · Walnut Creek, CA

Sandra Karpenko, M.D. is a hospice and palliative medicine (internal medicine) physician with a practice address in Walnut Creek, California, and NPI 1780745281, issued on Dec 12, 2006. Check the license (California G50631, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1780745281
Name
Sandra Karpenko
Credential
M.D.
Primary taxonomy
Hospice and Palliative Medicine (Internal Medicine) Physician 207RH0002X
License number
G50631 CA
Self-reported in NPPES; status is on the state search
Practice location
1220 Rossmoor Pkwy, Walnut Creek, CA 94595
Phone
(925) 947-3393
Enumerated
Dec 12, 2006
Record last updated
Jul 19, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(925) 947-3396
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest hospice and palliative medicine (internal medicine) physician records → All 260 in California → Look up another NPI →

Also registered at 1220 Rossmoor Pkwy

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Viviane Alfandary, M.D.Internal Medicine Physician1053338095
  2. Megha AmbatiInternal Medicine Physician1083849111
  3. Sohrab Amiri, M.D.Internal Medicine Physician1811420243
  4. Mitchell Applegate, M.D.Hospitalist Physician1093803447
  5. Anusha Bakshi, M.D.Internal Medicine Physician1346778909
  6. Christian Balzer, M.D.Internal Medicine Physician1518104892

Verify Sandra Karpenko in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G50631    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Sandra Karpenko among 260 hospice and palliative medicine (internal medicine) physician records in California

Sandra Karpenko, M.D. is one of 260 hospice and palliative medicine (internal medicine) physician records with a practice address in California. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 75% newer
  • In a Medicare fileNo · 87% of these records are
  • In the CMS Doctors and Clinicians fileNo · 74% of these records are
  • Record last updated2016 · 38% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0002X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hospice and Palliative Medicine (Internal Medicine) Physician providers in California

There are 260 hospice and palliative medicine (internal medicine) physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 260 in California → Every provider in Walnut Creek → Hospice and Palliative Medicine (Internal Medicine) Physician nationwide →

The 8 hospice and palliative medicine (internal medicine) physician records with the nearest ZIP codes

  1. Aliya Gessling, M.D.Walnut Creek, CA 945961912389149
  2. Mariko Feuz, DOWalnut Creek, CA 945971912575853
  3. Levy Jo Manuntag, MDWalnut Creek, CA 945971932696846
  4. Shabnam Yekta, M.D.Walnut Creek, CA 945971932513744
  5. Natalia Zielkiewicz, M.D.Walnut Creek, CA 945971033272729
  6. Donna Foliart, M.D.Walnut Creek, CA 945981205051687
  7. Rebecca Bastian, M.D.Vallejo, CA 945891578875324
  8. Fallon Bushee, MDOakland, CA 946021750918769

Common questions

What is Sandra Karpenko, M.D.'s NPI number?

Sandra Karpenko, M.D.'s National Provider Identifier (NPI) is 1780745281, issued on Dec 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Sandra Karpenko, M.D. located?

The NPPES record lists a practice address at 1220 Rossmoor Pkwy, Walnut Creek, CA, 94595. Phone: (925) 947-3393. Providers update this record themselves, so call before visiting.

How can I verify Sandra Karpenko, M.D.'s license?

NPPES lists California license number G50631, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.