NPPES file of Aug 9, 2026

Gretchen Diane Lamberth, OTR

Occupational Therapist · Sierra Vista, AZ

Gretchen Diane Lamberth, OTR is an occupational therapist with a practice address in Sierra Vista, Arizona, and NPI 1326175225, issued on Feb 27, 2007. Check the license (Arizona 0478, as entered in NPPES) with the Arizona board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1326175225
Name
Gretchen Diane Lamberth
Credential
OTR
Primary taxonomy
Occupational Therapist 225X00000X
License number
0478 AZ
Self-reported in NPPES; status is on the state search
Practice location
3555 E Fry Blvd, Sierra Vista, AZ 85635
Phone
(520) 515-2790
Enumerated
Feb 27, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(520) 515-2726
Medicaid ID
614851 AZ
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 3555 E Fry Blvd

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

  1. Elizabeth Aira, P.T.Physical Therapist1871629691
  2. Susan Breen, ED.SSchool Psychologist1386948560
  3. Cheri Courrege, RNSchool Registered Nurse1972718476
  4. Pamela CrouchSchool Psychologist1902959547
  5. Annette DuceSpeech-Language Pathologist1669682936
  6. Brittanie FreshourSpeech-Language Pathologist1609351337

Verify Gretchen Diane Lamberth in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Arizona board licenses this profession
    Search for license 0478
    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
Find the Arizona 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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Gretchen Diane Lamberth among 2,133 occupational therapist records in Arizona

Gretchen Diane Lamberth, OTR is one of 2,133 occupational therapist records with a practice address in Arizona. 11% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 7% of them.

  • NPI issued2007 · 7% of these records are older, 79% newer
  • In a Medicare fileNo · 11% of these records are
  • In the CMS Doctors and Clinicians fileNo · 12% of these records are
  • Record last updated2007 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225X00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

10 occupational therapist records list a practice address in Sierra Vista

They are 10 of the 801 NPPES records with a practice address in Sierra Vista, and 2,133 occupational therapist records in Arizona. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 occupational therapist records with the nearest ZIP codes

  1. Hayley AuerSierra Vista, AZ 856351831048479
  2. Joan Jackson, OTR/LSierra Vista, AZ 856351962665448
  3. Jordan JenningsSierra Vista, AZ 856351922613306
  4. Karen Klein, OTRSierra Vista, AZ 856351972725539
  5. Jessica MonarchSierra Vista, AZ 856351003451949
  6. Kristin RiordanSierra Vista, AZ 856351447863915
  7. Christine Rowser, OTR LSierra Vista, AZ 856351932361300
  8. Pamela Parker, OTSells, AZ 856341780948562

Common questions

What is Gretchen Diane Lamberth, OTR's NPI number?

Gretchen Diane Lamberth, OTR's National Provider Identifier (NPI) is 1326175225, issued on Feb 27, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Gretchen Diane Lamberth, OTR located?

The NPPES record lists a practice address at 3555 E Fry Blvd, Sierra Vista, AZ, 85635. Phone: (520) 515-2790. Providers update this record themselves, so call before visiting.

How can I verify Gretchen Diane Lamberth, OTR's license?

NPPES lists Arizona license number 0478, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity 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. 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.