NPPES file of Aug 9, 2026

Dale J. Klein, MD

Anesthesiology Physician · O Fallon, MO

Dale J. Klein, MD is an anesthesiology physician with a practice address in O Fallon, Missouri, and NPI 1801990437, issued on Sep 12, 2006. Check the license (Missouri 2006031936, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; 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
1801990437
Name
Dale J. Klein
Credential
MD
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
2006031936 MO
Self-reported in NPPES; status is on the state search
Practice location
2 Progress Point Pkwy, O Fallon, MO 63368
Phone
(636) 344-1000
Enumerated
Sep 12, 2006
Record last updated
Feb 11, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(314) 362-1185
Medicare enrollment
Enrolled (PECOS I20120201000401); may accept Medicare assignment
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 2 Progress Point Pkwy

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

  1. Victor Bailey, DOEmergency Medicine Physician1760518336
  2. Randi Becker, MDEmergency Medicine Physician1235392788
  3. Dane Blackwood, CRNACertified Registered Nurse Anesthetist1770127185
  4. Ajay Chalasani, MDAnesthesiology Physician1487760385
  5. Jill Cooley, MDAnesthesiology Physician1568780419
  6. Mary Ernst, CRNACertified Registered Nurse Anesthetist1477864213

Verify Dale J. Klein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
    Search for license 2006031936
    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 Missouri 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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93% fewer Medicare Part D claims than the average anesthesiology physician in 2024

30 Medicare Part D claims for 25 beneficiaries, against an average of 402 among the 4,319 providers of this specialty who prescribed in Part D. 21 claims were for opioids.

  1. Dale Klein30
  2. Specialty average402

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: $16.20

1 payment: food and beverage; the largest payer was Lundbeck LLC. The 17,774 providers of this specialty with any payment received $669.59 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Dale Klein$16.20
  2. Specialty average$669.59

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

Dale J. Klein among 1,153 anesthesiology physician records in Missouri

Dale J. Klein, MD is one of 1,153 anesthesiology physician records with a practice address in Missouri. 70% 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 12% of them.

  • NPI issued2006 · 12% of these records are older, 54% newer
  • In a Medicare fileYes · 70% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1997 · median 2007 among the 718 with a school on file
  • Record last updated2020 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

15 anesthesiology physician records list a practice address in O Fallon

They are 15 of the 1,225 NPPES records with a practice address in O Fallon, and 1,153 anesthesiology physician records in Missouri.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Ajay Chalasani, MDO Fallon, MO 633681487760385
  2. Jill Cooley, MDO Fallon, MO 633681568780419
  3. Sunita Dharmavarapu, MDO Fallon, MO 633681063542793
  4. Steven Feit, MDO Fallon, MO 633681952342206
  5. David Friedman, MDO Fallon, MO 633681083693501
  6. Chakrapol Lattanand, MDO Fallon, MO 633681033198551
  7. John Long, DOO Fallon, MO 633681063442648
  8. Brian Meek, MDO Fallon, MO 633681730342023

Common questions

What is Dale J. Klein, MD's NPI number?

Dale J. Klein, MD's National Provider Identifier (NPI) is 1801990437, issued on Sep 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Dale J. Klein, MD located?

The NPPES record lists a practice address at 2 Progress Point Pkwy, O Fallon, MO, 63368. Phone: (636) 344-1000. Providers update this record themselves, so call before visiting.

How can I verify Dale J. Klein, MD's license?

NPPES lists Missouri license number 2006031936, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Dale J. Klein, MD prescribe under Medicare Part D?

In 2024, Dale J. Klein, MD had 30 Medicare Part D claims for 25 beneficiaries; the average among anesthesiology physician prescribers was 402. 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.