Daniel David Klaristenfeld, MD
Surgery Physician · Fontana, CA
Daniel David Klaristenfeld, MD is a surgery physician with a practice address in Fontana, California, and NPI 1780732701, issued on Jan 8, 2007. Check the license (California A93651, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Daniel David Klaristenfeld
- Credential
- MD
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- A93651 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9961 Sierra Ave, Fontana, CA 92335
- Phone
- (909) 427-3910
- Enumerated
- Jan 8, 2007
- Record last updated
- Dec 3, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20070913000713); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 3,118 in California → Look up another NPI →
Also registered at 9961 Sierra Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Daniel David Klaristenfeld in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A93651Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% more Medicare Part D claims than the average surgery physician in 2024
161 Medicare Part D claims for 61 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 49 claims were for opioids.
Most prescribed
- Ibuprofen35 claims
- Oxycodone Hcl31 claims
- Neomycin Sulfate26 claims
- Metronidazole25 claims
- Tramadol Hcl18 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: $10,132.84
12 payments; by number, the most common kind was consulting fee; the largest payer was Ethicon Inc. The 17,103 providers of this specialty with any payment received $3,513.80 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
- Southern California Permanente Medical GroupSan Marcos, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Daniel David Klaristenfeld among 3,118 surgery physician records in California
Daniel David Klaristenfeld, MD is one of 3,118 surgery physician records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 45% of them.
- NPI issued2007 · 45% of these records are older, 42% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2001 · median 2003 among the 1,901 with a school on file
- Record last updated2021 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in California
There are 3,118 surgery physician records in California.
All 3,118 in California → Every provider in Fontana → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Lori Chow, MDFontana, CA 923351437220464
- Siu-Keung Chung, M.D.Fontana, CA 923351295797751
- Clifford Eke, MDFontana, CA 923351366501959
- Lawrence Harms, MDFontana, CA 923351821146739
- Taylor Ho, MDFontana, CA 923351003988585
- Samir Johna, MDFontana, CA 923351063571628
- Jane Ong, MDFontana, CA 923351538236351
- Chun Rhim, MDFontana, CA 923351750406252
Common questions
What is Daniel David Klaristenfeld, MD's NPI number?
Daniel David Klaristenfeld, MD's National Provider Identifier (NPI) is 1780732701, issued on Jan 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Daniel David Klaristenfeld, MD located?
The NPPES record lists a practice address at 9961 Sierra Ave, Fontana, CA, 92335. Phone: (909) 427-3910. Providers update this record themselves, so call before visiting.
How can I verify Daniel David Klaristenfeld, MD's license?
NPPES lists California license number A93651, 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 David Klaristenfeld, MD prescribe under Medicare Part D?
In 2024, Daniel David Klaristenfeld, MD had 161 Medicare Part D claims for 61 beneficiaries; the average among surgery physician prescribers was 147. 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.