NPPES file of Aug 9, 2026

Daniel C. Park, M.D.

Internal Medicine Physician · Oakland, CA

Daniel C. Park, M.D. is an internal medicine physician with a practice address in Oakland, California, and NPI 1073691838, issued on Nov 1, 2006. Check the license (California G51054, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1073691838
Name
Daniel C. Park
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
G51054 CA
Self-reported in NPPES; status is on the state search
Practice location
818 Webster Street, Oakland, CA 94607
Phone
(510) 986-6800
Enumerated
Nov 1, 2006
Record last updated
Dec 22, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(510) 986-6896
Medicaid ID
00G510540 CA
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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Also registered at 818 Webster Street

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

  1. Ryu Cheng, LCSWClinical Social Worker1023461175
  2. Thanh Dinh, NPFamily Nurse Practitioner1942699251
  3. Thien Gangopadyhay, FNPFamily Nurse Practitioner1952586232
  4. Jenny Lam, LCSWClinical Social Worker1831575901
  5. Jenny RileyFamily Medicine Physician1508087313
  6. Natsuko Takakuwa, MDPediatrics Physician1689093049

Verify Daniel C. Park in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G51054
    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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99% fewer Medicare Part D claims than the average internal medicine physician in 2024

25 Medicare Part D claims for 11 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Daniel Park25
  2. Specialty average3,176

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $26.97

1 payment: food and beverage; the largest payer was Hologic Sales and Service, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Daniel Park$26.97
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Daniel C. Park among 17,696 internal medicine physician records in California

Daniel C. Park, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 56% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • Record last updated2016 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

432 internal medicine physician records list a practice address in Oakland

They are 432 of the 18,558 NPPES records with a practice address in Oakland, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Marilyn Ancel, MDOakland, CA 946071295813087
  2. Clayton Chan, MDOakland, CA 946071972682037
  3. Stewart Fong, MDOakland, CA 946071659459436
  4. Xiaoguang Huang, M.D., PHD.Oakland, CA 946071235179870
  5. Susan Mei Huang, MDOakland, CA 946071093894032
  6. Dennis Ing, MDOakland, CA 946071477631257
  7. Anthony Iton, M.D.Oakland, CA 946071609961101
  8. Nicola Longmuir, MDOakland, CA 946071710065511

Common questions

What is Daniel C. Park, M.D.'s NPI number?

Daniel C. Park, M.D.'s National Provider Identifier (NPI) is 1073691838, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Daniel C. Park, M.D. located?

The NPPES record lists a practice address at 818 Webster Street, Oakland, CA, 94607. Phone: (510) 986-6800. Providers update this record themselves, so call before visiting.

How can I verify Daniel C. Park, M.D.'s license?

NPPES lists California license number G51054, 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.

How much does Daniel C. Park, M.D. prescribe under Medicare Part D?

In 2024, Daniel C. Park, M.D. had 25 Medicare Part D claims for 11 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

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

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.