NPPES file of Aug 9, 2026

Andrew Warren Hesseltine, MD

Pain Medicine (Anesthesiology) Physician · Colton, CA

Andrew Warren Hesseltine, MD is a pain medicine (anesthesiology) physician with a practice address in Colton, California, and NPI 1467438036, issued on Dec 15, 2005. Check the license (California A66517, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1467438036
Name
Andrew Warren Hesseltine
Credential
MD
Primary taxonomy
Pain Medicine (Anesthesiology) Physician 207LP2900X
License number
A66517 CA
Self-reported in NPPES; status is on the state search
Practice location
1850 E Washington St, Colton, CA 92324
Phone
(909) 887-2991
Enumerated
Dec 15, 2005
Record last updated
Feb 1, 2023
Fax
(909) 887-5694
Medicare enrollment
Enrolled (PECOS I20040405001495); accepts Medicare assignment
Medical or professional school
Loma Linda University School Of Medicine, 1997
Telehealth
Offers telehealth (CMS)
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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Also registered at 1850 E Washington St

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

  1. Alexandria Arias, PA-CPhysician Assistant1902060361
  2. Mahmood Fathollazadeh, PA-CPhysician Assistant1386711158
  3. Francisco Felix, PA-CPhysician Assistant1730770942
  4. Tim HoangPhysician Assistant1841527942
  5. Erin Jaeger, PA-CPhysician Assistant1407263486
  6. Maxine MalekmehrPhysician Assistant1871282152

Verify Andrew Warren Hesseltine in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A66517
    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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84% fewer Medicare Part D claims than the average pain medicine (anesthesiology) physician in 2024

287 Medicare Part D claims for 140 beneficiaries, against an average of 1,750 among the 2,982 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 96 claims were for opioids.

  1. Andrew Hesseltine287
  2. Specialty average1,750

Most prescribed

  1. Gabapentin34 claims
  2. Hydrocodone-Acetaminophen26 claims
  3. Oxycodone-Acetaminophen25 claims
  4. Tizanidine Hcl17 claims
  5. Hydromorphone Hcl16 claims
  6. Topiramate15 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.

The MIPS final score for 2023 (Medicare payment program): 84.5 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score51.6
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $3,444.82

99 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 2,789 providers of this specialty with any payment received $3,225.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Andrew Hesseltine$3,444.82
  2. Specialty average$3,225.41

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. Andrew W Hesseltine MD IncColton, CA

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

Andrew Warren Hesseltine among 536 pain medicine (anesthesiology) physician records in California

Andrew Warren Hesseltine, MD is one of 536 pain medicine (anesthesiology) physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 95% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated1997 · median 2004 among the 367 with a school on file
  • Record last updated2023 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207LP2900X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pain Medicine (Anesthesiology) Physician providers in California

There are 536 pain medicine (anesthesiology) physician records in California.

The 8 pain medicine (anesthesiology) physician records with the nearest ZIP codes

  1. Eleanor Cho, MDFontana, CA 923351841359411
  2. Mostafa Ilbeigi, M.D.Apple Valley, CA 923071932213709
  3. Mersedeh Karimian, D.O.Apple Valley, CA 923071952516304
  4. Rajender Thakran, M.D.Apple Valley, CA 923071619988300
  5. Baher Boctor, M.D.Loma Linda, CA 923541164657771
  6. Jose Cesar, M.D.Loma Linda, CA 923541134559776
  7. Michael Wettstein, MDLoma Linda, CA 923541245271303
  8. Thomas Edell, M.D.Loma Linda, CA 923571114996360

Common questions

What is Andrew Warren Hesseltine, MD's NPI number?

Andrew Warren Hesseltine, MD's National Provider Identifier (NPI) is 1467438036, issued on Dec 15, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Andrew Warren Hesseltine, MD located?

The NPPES record lists a practice address at 1850 E Washington St, Colton, CA, 92324. Phone: (909) 887-2991. Providers update this record themselves, so call before visiting.

How can I verify Andrew Warren Hesseltine, MD's license?

NPPES lists California license number A66517, 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 Andrew Warren Hesseltine, MD prescribe under Medicare Part D?

In 2024, Andrew Warren Hesseltine, MD had 287 Medicare Part D claims for 140 beneficiaries; the average among pain medicine (anesthesiology) physician prescribers was 1,750. Part D covers Medicare prescriptions only.

What is Andrew Warren Hesseltine, MD's MIPS final score?

The 2023 MIPS final score is 84.5 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.