Timothy John Hatlen
Internal Medicine Physician · Torrance, CA
Timothy John Hatlen is an internal medicine physician with a practice address in Torrance, California, and NPI 1245673375, issued on Apr 8, 2013. Check the license (California A142824, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Timothy John Hatlen
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- A142824 CA
MD60634682 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1000 W Carson St, Torrance, CA 90502
- Phone
- (310) 222-3813
- Enumerated
- Apr 8, 2013
- Record last updated
- Jan 28, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicaid ID
- A142824 CA
- Medicare enrollment
- Enrolled (PECOS I20170509002656); accepts Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 2013
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1000 W Carson St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Arjan AbarStudent in an Organized Health Care Education/Training Program1982309290
- Brenda Abarca, MDPsychiatry Physician1407485527
- Maleeha AbbasStudent in an Organized Health Care Education/Training Program1275203499
- Saamirah Abdul-MuminCommunity Health Worker1144683947
- Maria Elena AbedesAmbulatory Care Registered Nurse1184360992
- Hoda Abou-Ziab, PSYDClinical Psychologist1649618125
Verify Timothy John Hatlen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A142824Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average internal medicine physician in 2024
453 Medicare Part D claims for 24 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Biktarvy59 claims
- Atorvastatin Calcium51 claims
- Levothyroxine Sodium18 claims
- Albuterol Sulfate Hfa15 claims
- Ketoconazole15 claims
- Delstrigo13 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.
Industry payments in 2024: $471.92
28 payments; by number, the most common kind was food and beverage; the largest payer was Shionogi Inc. 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.
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
- County OF Los AngelesLong Beach, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Timothy John Hatlen among 17,696 internal medicine physician records in California
Timothy John Hatlen 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 2013, is newer than 71% of them.
- NPI issued2013 · 71% of these records are older, 26% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2013 · median 2004 among the 11,065 with a school on file
- Record last updated2020 · 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).
231 internal medicine physician records list a practice address in Torrance
They are 231 of the 8,901 NPPES records with a practice address in Torrance, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Torrance → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Peter Barrett, M.D.Torrance, CA 905021568441954
- Michael Bolaris, MDTorrance, CA 905021881898401
- Brian Chow, MDTorrance, CA 905021972716223
- Anthony Dike, MDTorrance, CA 905021003858481
- Robert JendersTorrance, CA 905021629006796
- Rashmi Menon, M.D.Torrance, CA 905021407053416
- Emily Nguyen, DOTorrance, CA 905021083812028
- Mahnaz Rahbar, M.D.Torrance, CA 905021306971775
Common questions
What is Timothy John Hatlen's NPI number?
Timothy John Hatlen's National Provider Identifier (NPI) is 1245673375, issued on Apr 8, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Timothy John Hatlen located?
The NPPES record lists a practice address at 1000 W Carson St, Torrance, CA, 90502. Phone: (310) 222-3813. Providers update this record themselves, so call before visiting.
How can I verify Timothy John Hatlen's license?
NPPES lists California license number A142824, 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 Timothy John Hatlen prescribe under Medicare Part D?
In 2024, Timothy John Hatlen had 453 Medicare Part D claims for 24 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.