COREY WARNER M.D.
NPI 1801998968
Internal Medicine in Hidden Valley Lake, CA

Q: What is Corey Warner's NPI number?

The NPI number for Corey Warner is 1801998968. It was assigned to this individual provider in the NPPES registry on September 1, 2006.

Q: What is Corey Warner's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Corey Warner was last updated on June 25, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since September 01, 2006PECOS Enrolled

73.79/100

CMS Quality Rating

18990 COYOTE VALLEY RD STE 10, HIDDEN VALLEY LAKE, CA 95467(707) 987-8344 Get Directions Write a Review

NPPES record last updated: June 25, 2013. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Corey Warner M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

COREY WARNER M.D. (NPI 1801998968) is an individual internal medicine provider in Hidden Valley Lake, California, licensed in California (C53422) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1801998968

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameCOREY WARNERCredential: M.D.

Location Address18990 COYOTE VALLEY RD STE 10Hidden Valley Lake, CA 95467-8339

Mailing Address18990 Coyote Valley Rd Ste 10Hidden Valley Lake, CA 95467-8339 · (707) 987-8344

Phone(707) 987-8344

Sole ProprietorNo

Enumeration DateSeptember 1, 2006

Last NPPES UpdateJune 25, 2013

✔ NPI 1801998968 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

Licenses✔ Licensed in CA · C53422✔ Licensed in IL · 036103245

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

18990 COYOTE VALLEY RD STE 10, Hidden Valley Lake, CA 95467

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Other Identifiers 1

Medicare UPINH24310IL

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Corey Warner M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95467 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$133.94 typical visit price

range $58.87 – $176.60

Typical copayment $33.48 (range $14.71 – $44.15)

Most-billed visit code 99204

Established Patient

$103.36 typical visit price

range $19.28 – $144.60

Typical copayment $25.84 (range $4.82 – $36.15)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

73.79/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

76.87

Promoting Interoperability

Improvement Activities

Cost

36.93

Referred Medical Equipment & Supplies CMS DME claims 35

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

12 suppliers80 claims181 services$6.57 avg. paid by Medicare

Normal, low and high calibrator solution / chips A4256

DME-Other DME · category DE000N

5 suppliers11 claims11 services$2.93 avg. paid by Medicare

Lancets, per box of 100 A4259

DME-Medical/Surgical Supplies · category DA000N

7 suppliers26 claims36 services$1.14 avg. paid by Medicare

Skin barrier; solid, 4 x 4 or equivalent; each A4362

DME-Orthotic Devices · category DF010N

3 suppliers16 claims360 services$3.31 avg. paid by Medicare

Ostomy belt, each A4367

DME-Orthotic Devices · category DF010N

1 supplier12 claims12 services$6.74 avg. paid by Medicare

Ostomy skin barrier, powder, per oz A4371

DME-Orthotic Devices · category DF010N

2 suppliers12 claims33 services$3.48 avg. paid by Medicare

Ostomy skin barrier, pectin-based, paste, per ounce A4406

DME-Orthotic Devices · category DF010N

5 suppliers27 claims152 services$5.38 avg. paid by Medicare

Ostomy skin barrier, with flange (solid, flexible, or accordion), extended wear, with built-in convexity, 4 x 4 inches or smaller, each A4407

DME-Orthotic Devices · category DF010N

2 suppliers14 claims360 services$7.77 avg. paid by Medicare

Ostomy skin barrier, with flange (solid, flexible or accordion), extended wear, without built-in convexity, 4 x 4 inches or smaller, each A4409

DME-Orthotic Devices · category DF010N

5 suppliers21 claims470 services$5.87 avg. paid by Medicare

Ostomy pouch, drainable; for use on barrier with locking flange, with filter (2 piece system), each A4427

DME-Orthotic Devices · category DF010N

1 supplier12 claims240 services$2.47 avg. paid by Medicare

Adhesive remover, wipes, any type, each A4456

DME-Medical/Surgical Supplies · category DA000N

3 suppliers20 claims1,800 services$0.23 avg. paid by Medicare

Tubing with integrated heating element for use with positive airway pressure device A4604

DME-Other DME · category DE001N

5 suppliers93 claims93 services$41.07 avg. paid by Medicare

Ostomy pouch, drainable; for use on barrier with flange (2 piece system), each A5063

DME-Orthotic Devices · category DF010N

3 suppliers18 claims600 services$2.46 avg. paid by Medicare

Skin barrier, wipes or swabs, each A5120

DME-Orthotic Devices · category DF010N

4 suppliers23 claims735 services$0.23 avg. paid by Medicare

Full face mask used with positive airway pressure device, each A7030

DME-Other DME · category DE001N

5 suppliers76 claims76 services$106.94 avg. paid by Medicare

Face mask interface, replacement for full face mask, each A7031

DME-Other DME · category DE001N

5 suppliers88 claims241 services$42.52 avg. paid by Medicare

Cushion for use on nasal mask interface, replacement only, each A7032

DME-Other DME · category DE001N

3 suppliers39 claims221 services$24.06 avg. paid by Medicare

Pillow for use on nasal cannula type interface, replacement only, pair A7033

DME-Other DME · category DE001N

4 suppliers33 claims182 services$16.24 avg. paid by Medicare

Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034

DME-Other DME · category DE001N

5 suppliers70 claims70 services$67.47 avg. paid by Medicare

Headgear used with positive airway pressure device A7035

DME-Other DME · category DE001N

6 suppliers78 claims78 services$24.00 avg. paid by Medicare

Tubing used with positive airway pressure device A7037

DME-Other DME · category DE001N

5 suppliers50 claims52 services$21.99 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

7 suppliers138 claims788 services$3.02 avg. paid by Medicare

Water chamber for humidifier, used with positive airway pressure device, replacement, each A7046

DME-Other DME · category DE001N

8 suppliers71 claims71 services$13.57 avg. paid by Medicare

Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260

DME-Hospital Beds · category DB000N

1 supplier12 claims12 services$68.39 avg. paid by Medicare

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

2 suppliers32 claims32 services$19.26 avg. paid by Medicare

Nebulizer, with compressor E0570

DME-Other DME · category DE000N

1 supplier27 claims27 services$8.16 avg. paid by Medicare

Continuous positive airway pressure (cpap) device E0601

DME-Other DME · category DE001N

2 suppliers13 claims13 services$45.96 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

6 suppliers278 claims278 services$112.15 avg. paid by Medicare

Portable oxygen concentrator, rental E1392

DME-Oxygen and Supplies · category DC002N

5 suppliers100 claims101 services$35.91 avg. paid by Medicare

Albuterol, up to 2.5 mg and ipratropium bromide, up to 0.5 mg, fda-approved final product, non-compounded, administered through dme J7620

DME-Drugs Administered Through DME · category DG006N

4 suppliers17 claims1,830 services$0.09 avg. paid by Medicare

Standard wheelchair K0001

DME-Wheelchairs · category DD000N

1 supplier14 claims14 services$28.99 avg. paid by Medicare

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553

DME-Other DME · category DE017N

10 suppliers106 claims106 services$189.32 avg. paid by Medicare

Receiver (monitor), dedicated, for use with therapeutic glucose continuous monitor system K0554

DME-Other DME · category DE017N

5 suppliers11 claims11 services$205.54 avg. paid by Medicare

Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing K0738

DME-Oxygen and Supplies · category DC000N

2 suppliers92 claims92 services$37.43 avg. paid by Medicare

Pharmacy dispensing fee for inhalation drug(s); per 30 days Q0513

DME-Other DME · category DE000N

5 suppliers20 claims20 services$24.71 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MRS. THERESA SCHMITZ P.A.

Physician Assistant (Medical)

18990 COYOTE VALLEY RD STE 10
HIDDEN VALLEY LAKE, CA 95467

Lake County (707) 987-8344

MR. SEAN THOMAS PARKER PA-C

Physician Assistant

18990 COYOTE VALLEY RD STE 10
HIDDEN VALLEY LAKE, CA 95467

Lake County (707) 987-8344

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Corey Warner's NPI number?

The NPI number for Corey Warner is 1801998968. It was assigned to this individual provider in the NPPES registry on September 1, 2006.

Where is Corey Warner located?

Corey Warner practices at 18990 Coyote Valley Rd Ste 10, Hidden Valley Lake, CA 95467. The listed phone number is (707) 987-8344.

What is Corey Warner's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Corey Warner enrolled in Medicare?

Yes. Corey Warner is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Corey Warner was last updated on June 25, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.