What is Wendy Warren's NPI number?

Wendy Warren's National Provider Identifier (NPI) is 1992836472, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Wendy Warren's specialty?

Wendy Warren is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).

Where is Wendy Warren located?

Wendy Warren's practice location on file with NPPES is 2821 Daggett Ave Ste 100, Klamath Falls, OR 97601-1106.

What is Wendy Warren's phone number?

The practice phone number listed in the NPPES registry for Wendy Warren is (541) 274-6733.

Does Wendy Warren accept Medicare?

Wendy Warren is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Wendy Warren's NPI active?

Yes — Wendy Warren's NPI (1992836472) is active in the NPPES registry as of the last update on 2020-02-11.

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Wendy Warren, M.D.

NPI 1992836472 · Family Medicine Physician · Klamath Falls, OR

Wendy Warren, M.D. is a Family Medicine Physician provider in Klamath Falls, OR (NPI 1992836472).

Provider details

NPI number: 1992836472
Entity type: Individual
Primary specialty: Family Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Female
Sole proprietor: No
License: MD18071 (OR)

Practice location

2821 Daggett Ave Ste 100

Klamath Falls, OR 97601-1106

Phone: (541) 274-6733

Fax: (541) 274-2006

Street-level locationGet directions

More OR providers

Mailing address

4825 Sunset Ridge Rd

Klamath Falls, OR 97601-9310

Specialties & taxonomies

Family Medicine PhysicianPrimary207Q00000XLicense MD18071 (OR)
Allopathic & Osteopathic Physicians

Additional practice locations (1)

4825 Sunset Ridge Rd
Klamath Falls, OR 97601-9310
Phone: (541) 891-8149

Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Established profile(71/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure28% of score
19 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
2 documented practice locations
Medicare service volume (vs. specialty peers)28% of score
232 Medicare services, 2024 (ranked within specialty)

Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232	105	$77
Hospital Discharge Day Management, 30 Minutes Or Less99238	40	$79
Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231	35	$48
Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222	24	$127
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	15	$95
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.

Drug	Part D claims (2024)
Levothyroxine Sodium	17
Lisinopril	14
Amlodipine Besylate	13

Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do not include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.

Enumerated: 2007-03-08
Last updated: 2020-02-11
Certified: 2020-02-11

Frequently asked questions

What is Wendy Warren's NPI number?: Wendy Warren's National Provider Identifier (NPI) is 1992836472, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Wendy Warren's specialty?: Wendy Warren is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
Where is Wendy Warren located?: Wendy Warren's practice location on file with NPPES is 2821 Daggett Ave Ste 100, Klamath Falls, OR 97601-1106.
What is Wendy Warren's phone number?: The practice phone number listed in the NPPES registry for Wendy Warren is (541) 274-6733.
Does Wendy Warren accept Medicare?: Wendy Warren is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Wendy Warren's NPI active?: Yes — Wendy Warren's NPI (1992836472) is active in the NPPES registry as of the last update on 2020-02-11.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232	105	$77
Hospital Discharge Day Management, 30 Minutes Or Less99238	40	$79
Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231	35	$48
Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222	24	$127
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	15	$95
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.

Drug

Part D claims (2024)

Levothyroxine Sodium

Lisinopril

Amlodipine Besylate

Provider details

Practice location

Mailing address

Specialties & taxonomies

Additional practice locations (1)

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Registry dates

Frequently asked questions

Specialties & taxonomies

Additional practice locations (1)

Frequently asked questions

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)