NPPES file of Aug 9, 2026

Kristen L. Hartley, MD

Ophthalmology Physician · Vallejo, CA

Kristen L. Hartley, MD is an ophthalmology physician with a practice address in Vallejo, California, and NPI 1710914775, issued on Jun 27, 2006. Check the license 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
1710914775
Name
Kristen L. Hartley
Credential
MD
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
ME93092 FL
Self-reported in NPPES; status is on the state search
Practice location
975 Sereno Dr, Vallejo, CA 94589
Phone
(707) 651-1000
Enumerated
Jun 27, 2006
Record last updated
Dec 9, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid ID
273078200 FL
Medicare enrollment
Enrolled (PECOS I20070907000660); accepts Medicare assignment
Medical or professional school
University Of Wisconsin School Of Medicine, 2001
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.
Download card Updates feed

Also registered at 975 Sereno Dr

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

  1. Joel Aandahl, NPAdult Health Nurse Practitioner1891423653
  2. Noman Absar, MDCritical Care Medicine (Internal Medicine) Physician1205908951
  3. Anthony Acquaviva, MDUrology Physician1457439283
  4. Jhonnard James Acuna, CRNACertified Registered Nurse Anesthetist1205997327
  5. Omid AfshariPharmacist1184165391
  6. Eesha AftabStudent in an Organized Health Care Education/Training Program1770421687

Verify Kristen L. Hartley in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of CaliforniaCheck 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

77% fewer Medicare Part D claims than the average ophthalmology physician in 2024

354 Medicare Part D claims for 99 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.

  1. Kristen Hartley354
  2. Specialty average1,518

Most prescribed

  1. Prednisolone Acetate82 claims
  2. Atropine Sulfate56 claims
  3. Diclofenac Sodium44 claims
  4. Dorzolamide-Timolol36 claims
  5. Neomycin-Polymyxin-Dexameth32 claims
  6. Ofloxacin19 claims

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.

Bills Medicare through one group practice

  1. Permanente Medical Group IncSan Rafael, CA

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

Kristen L. Hartley among 2,899 ophthalmology physician records in California

Kristen L. Hartley, MD is one of 2,899 ophthalmology 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 9% of them.

  • NPI issued2006 · 9% of these records are older, 45% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2001 · median 2001 among the 1,907 with a school on file
  • Record last updated2021 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in California

There are 2,899 ophthalmology physician records in California.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Brian Bubnic, MDVallejo, CA 945891275611170
  2. Christine Chiou Smith, M.D.Vallejo, CA 945891225209034
  3. Alexander Dillon, M.D.Vallejo, CA 945891699120212
  4. David Gu, MDVallejo, CA 945891730634908
  5. David Robins, MDVallejo, CA 945891700965498
  6. Myra Beth Safo, MD, MPH, MSVallejo, CA 945891023507332
  7. David Simundson, MDVallejo, CA 945891548348444
  8. Hassan Tausif, MDVallejo, CA 945891346690682

Common questions

What is Kristen L. Hartley, MD's NPI number?

Kristen L. Hartley, MD's National Provider Identifier (NPI) is 1710914775, issued on Jun 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Kristen L. Hartley, MD located?

The NPPES record lists a practice address at 975 Sereno Dr, Vallejo, CA, 94589. Phone: (707) 651-1000. Providers update this record themselves, so call before visiting.

How can I verify Kristen L. Hartley, MD's license?

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 Kristen L. Hartley, MD prescribe under Medicare Part D?

In 2024, Kristen L. Hartley, MD had 354 Medicare Part D claims for 99 beneficiaries; the average among ophthalmology physician prescribers was 1,518. 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.