NPPES file of Aug 9, 2026

Diana Pey-Lin Lo, M.D.

Obstetrics & Gynecology Physician · Fremont, CA

Diana Pey-Lin Lo, M.D. is an obstetrics & gynecology physician with a practice address in Fremont, California, and NPI 1659696508, issued on Apr 5, 2010. Check the license (California A130970, 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
1659696508
Name
Diana Pey-Lin Lo
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
A130970 CA
Self-reported in NPPES; status is on the state search
Practice location
3200 Kearney Street, Fremont, CA 94538
Phone
(510) 490-1222
Enumerated
Apr 5, 2010
Record last updated
May 28, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20140929002433); accepts Medicare assignment
Medical or professional school
Tufts University School Of Medicine, 2010
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →

Also registered at 3200 Kearney Street

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

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  3. Luke Bi, MDGastroenterology Physician1700964202
  4. Lawrence Huang, DOPhysical Medicine & Rehabilitation Physician1669641460
  5. Sunny Jun, MDReproductive Endocrinology Physician1164565917
  6. Vineet Kamboj, D.P.M.Foot & Ankle Surgery Podiatrist1184773764

Verify Diana Pey-Lin Lo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A130970    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

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81% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

32 Medicare Part D claims for 15 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 44% of claims.

  1. Diana Lo32
  2. Specialty average165

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: $8.44

1 payment: food and beverage; the largest payer was Organon Llc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Diana Lo$8.44
  2. Specialty average$1,030.61

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

Bills Medicare through one group practice

  1. Sutter Bay Medical FoundationFremont, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Diana Pey-Lin Lo among 5,088 obstetrics & gynecology physician records in California

Diana Pey-Lin Lo, M.D. is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 70% of them.

  • NPI issued2010 · 70% of these records are older, 28% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated2010 · median 2004 among the 2,700 with a school on file
  • Record last updated2020 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in California

There are 5,088 obstetrics & gynecology physician records in California.

All 5,088 in California → Every provider in Fremont → Obstetrics & Gynecology Physician nationwide →

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Margie Aleman-Martin, MDFremont, CA 945381932180494
  2. Gene Barrie, MDFremont, CA 945381851369649
  3. Stacey Barrie, MDFremont, CA 945381841268646
  4. Irene Beissner, MDFremont, CA 945381922100908
  5. Siobhan Calhoun, MDFremont, CA 945381396726295
  6. Craig Johnson, MDFremont, CA 945381871561670
  7. Shakira Karipineni, MDFremont, CA 945381780684761
  8. Elizabeth Kurkjian, MDFremont, CA 945381598727414

Common questions

What is Diana Pey-Lin Lo, M.D.'s NPI number?

Diana Pey-Lin Lo, M.D.'s National Provider Identifier (NPI) is 1659696508, issued on Apr 5, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Diana Pey-Lin Lo, M.D. located?

The NPPES record lists a practice address at 3200 Kearney Street, Fremont, CA, 94538. Phone: (510) 490-1222. Providers update this record themselves, so call before visiting.

How can I verify Diana Pey-Lin Lo, M.D.'s license?

NPPES lists California license number A130970, 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 Diana Pey-Lin Lo, M.D. prescribe under Medicare Part D?

In 2024, Diana Pey-Lin Lo, M.D. had 32 Medicare Part D claims for 15 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.

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.