DR. PAUL DIEHL M.D.
NPI 1336215607
Internal Medicine in West Hills, CA

Q: What is Paul Diehl's NPI number?

The NPI number for Paul Diehl is 1336215607. It was assigned to this individual provider in the NPPES registry on November 28, 2006.

Q: What is Paul Diehl'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 Paul Diehl was last updated on July 21, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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 November 28, 2006PECOS EnrolledAccepts Medicare AssignmentCLIA 05D0871705 · Waiver

86.94/100

CMS Quality Rating

23101 SHERMAN PL, STE 302, WEST HILLS, CA 91307(818) 347-1500(818) 347-4119 Get Directions Write a Review

NPPES record last updated: July 21, 2020. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 21, 2020, Aug 10, 2016 (2 updates tracked since 2016).

On this page

About Dr. Paul Diehl M.d. NPPES

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

DR. PAUL DIEHL M.D. (NPI 1336215607) is an individual internal medicine provider in West Hills, California, licensed in California (A044437) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS, holds a CLIA Waiver certificate valid through June 3, 2027, and is a graduate of University College Of Medicine (1985).

NPPES Registry Identity

NPI1336215607

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameDR. PAUL DIEHLCredential: M.D.

Location Address23101 SHERMAN PL, STE 302West Hills, CA 91307-2047

Mailing AddressPo Box 77790Corona, CA 92877-0126 · (951) 278-5590 · Fax (951) 272-9924

Phone(818) 347-1500

Fax(818) 347-4119

Sole ProprietorYes

Medical School CMSUniversity College Of MedicineGraduated 1985

Enumeration DateNovember 28, 2006

Last NPPES UpdateJuly 21, 20202 updates tracked since enumeration

NPPES CertifiedJuly 21, 2020

✔ NPI 1336215607 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in CA · A044437

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.

23101 SHERMAN PL, West Hills, CA 91307

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Other Identifiers 2

Medicaid000A44437CA

OtherA44437CA · Medical State License

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Paul Diehl M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5294798872

PECOS Enrollment IDI20101028001277

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.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 05D0871705

Paul Diehl MD Inc · West Hills, CA

Active · expires Jun 3, 2027

CLIA Number05D0871705

Laboratory TypePhysician Office

Certificate Effective DateJune 4, 2025

Certificate Expiration DateJune 3, 2027

Laboratory DirectorPaul Diehl

Laboratory Phone(818) 347-1500

Laboratory LocationPaul Diehl MD Inc23101 Sherman Pl #104, West Hills, CA 91307

CLIA data matches this NPI record on: Address Name Phone

This certificate is issued to a laboratory to perform only waived tests.

Areas of Expertise CMS Part B claims 20

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

2,130 services331 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

250 services212 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

217 services45 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

176 services176 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

159 services27 patients

Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg J3420

This is a procedure where a small dose of Vitamin B-12, also known as Cyanocobalamin, is injected into your body. This vitamin is essential for nerve function and the production of red blood cells. It's often used to treat vitamin B-12 deficiency.

157 services26 patients

Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309

A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.

92 services14 patients

Administration of influenza virus vaccine G0008

The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.

79 services79 patients

Stool analysis for blood to screen for colon tumors 82270

A stool analysis for blood is a non-invasive procedure used to check for the presence of hidden blood in your stool. This can be an early sign of colon tumors. The test involves collecting a small sample of stool at home and sending it to a lab for analysis.

74 services74 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

74 services67 patients

Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a G0179

This procedure involves a doctor or approved practitioner reviewing your health status and re-certifying your need for Medicare-covered home health services. It includes communication with the home health agency and assessment of your health reports, even when you're not physically present.

65 services24 patients

Creatinine level to test for kidney function or muscle injury 82570

A creatinine level test measures the amount of creatinine in your blood. This substance is a waste product from normal muscle use. Higher levels can indicate possible kidney dysfunction or muscle injury. This test helps monitor kidney health.

58 services38 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

52 services40 patients

Hospital discharge day management, 30 minutes or less 99238

Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.

42 services31 patients

Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and G0180

This is a service where a doctor or authorized practitioner certifies that you require Medicare-covered home health services. They will communicate with the home health agency and review reports on your health status to ensure you receive appropriate care. This does not involve an in-person visit.

34 services26 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

24 services24 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

22 services18 patients

Blood glucose (sugar) level 82947

A blood glucose level test measures the amount of sugar in your blood. It's often used to monitor and manage conditions like diabetes. High or low levels can indicate a health issue. The test is usually done by pricking your finger for a small blood sample.

21 services16 patients

Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more 99306

An initial nursing facility visit is your first meeting with your healthcare team at a nursing facility. Lasting typically 45 minutes, this appointment involves a comprehensive health assessment and the creation of your personalized care plan. It's a crucial step to ensure your health and well-being.

14 services13 patients

Test to measure expiratory airflow and volume 94010

This test, known as spirometry, assesses how well your lungs work. It measures how much air you can inhale, how much you can exhale and how quickly you can exhale. It's non-invasive and helps diagnose conditions like asthma or COPD.

13 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91307 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

$142.39 typical visit price

range $62.96 – $187.60

Typical copayment $35.59 (range $15.74 – $46.90)

Most-billed visit code 99204

Established Patient

$109.96 typical visit price

range $20.84 – $153.61

Typical copayment $27.49 (range $5.21 – $38.40)

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.

86.94/100

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

Individually scored

Quality

98.79

Improvement Activities

Cost

54.7

Reported Quality Measures

Advance Care Plan

100%433 patients5/55-star benchmark: 100%

Appropriate Treatment for Upper Respiratory Infection (URI)

78%68 patients4/55-star benchmark: 100%

Breast Cancer Screening

100%164 patients5/55-star benchmark: 93%

Closing the Referral Loop: Receipt of Specialist Report

31%112 patients2/55-star benchmark: 87%

Colorectal Cancer Screening

43%420 patients2/55-star benchmark: 88%

Controlling High Blood Pressure

52%322 patients3/55-star benchmark: 91%

Diabetes: Eye Exam

0%116 patients1/55-star benchmark: 100%

Diabetes: Hemoglobin A1c (HbA1c) Poor Control (>9%)

Lower rates are better for this measure.

75%116 patients2/55-star benchmark: 91%

Documentation of Current Medications in the Medical Record

100%4,279 patients5/55-star benchmark: 100%

HIV Screening

4%369 patients1/55-star benchmark: 60%

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan

30%681 patients2/55-star benchmark: 98%

Preventive Care and Screening: Screening for Depression and Follow-Up Plan

100%690 patients5/55-star benchmark: 100%

Preventive Care and Screening: Screening for High Blood Pressure and Follow-Up Documented

100%3,040 patients5/55-star benchmark: 61%

Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention

Patients combinedPopulations: 100% · 632 patients

Patients screened: 100% · 632 patients

99%261 patients4/55-star benchmark: 100%

Screening for Osteoporosis for Women Aged 65-85 Years of Age

100%190 patients5/55-star benchmark: 98%

Statin Therapy for the Prevention and Treatment of Cardiovascular Disease

62%230 patients2/55-star benchmark: 91%

Use of High-Risk Medications in Older Adults

Lower rates are better for this measure.

Patients appropriateDiagnosis: 8% · 417 patients

Patients totalRate: 21% · 462 patients

20%462 patients2/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 13

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

17 suppliers56 claims145 services$6.20 avg. paid by Medicare

Lancets, per box of 100 A4259

DME-Medical/Surgical Supplies · category DA000N

7 suppliers12 claims16 services$1.05 avg. paid by Medicare

Administration set, with small volume nonfiltered pneumatic nebulizer, disposable A7003

DME-Other DME · category DE000N

2 suppliers11 claims17 services$1.28 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

4 suppliers12 claims64 services$1.78 avg. paid by Medicare

Hospital bed, semi-electric (head and foot adjustment), without side rails, without mattress E0295

DME-Hospital Beds · category DB000N

1 supplier30 claims30 services$49.68 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

1 supplier44 claims44 services$13.86 avg. paid by Medicare

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

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Other Providers at the Same Location NPPES 20

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

ANITA RATHEE, D.D.S. APC

Clinic/Center (Dental)

23101 SHERMAN PL, SUITE 415
WEST HILLS, CA 91307

Los Angeles County (818) 348-8898

BENJAMIN J COHEN M.D.

Internal Medicine (Cardiovascular Disease)

23101 SHERMAN PL, SUITE 110
WEST HILLS, CA 91307

Los Angeles County (818) 702-8800

VAHID HEMAT MD INC

Clinic/Center (Primary Care)

23101 SHERMAN PL, SUITE 407
WEST HILLS, CA 91307

Los Angeles County (818) 999-3800

DR. BERNARD MICHAEL DIAMOND MD

Orthopaedic Surgery

23101 SHERMAN PL, SUTIE 210
WEST HILLS, CA 91307

Los Angeles County (818) 348-4110

NAHID NAZARI MD, MPH

Preventive Medicine (Occupational Medicine)

23101 SHERMAN PL, SUITE # 301
WEST HILLS, CA 91307

Los Angeles County (949) 226-1299

MICHAEL B LEVEY M.D.

Internal Medicine (Cardiovascular Disease)

23101 SHERMAN PL, SUITE110
WEST HILLS, CA 91307

Los Angeles County (818) 702-8800

WESTHILLSOBGYN INC

Obstetrics & Gynecology

23101 SHERMAN PL, #401
WEST HILLS, CA 91307

Los Angeles County (818) 888-6564

MRS. THERESA A BROWN N.P.

Internal Medicine (Cardiovascular Disease)

23101 SHERMAN PL, SUITE 110
WEST HILLS, CA 91307

Los Angeles County (818) 702-8800

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 Paul Diehl's NPI number?

The NPI number for Paul Diehl is 1336215607. It was assigned to this individual provider in the NPPES registry on November 28, 2006.

Where is Paul Diehl located?

Paul Diehl practices at 23101 Sherman Pl Ste 302, West Hills, CA 91307. The listed phone number is (818) 347-1500.

What is Paul Diehl's specialty?

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

Is Paul Diehl enrolled in Medicare?

Yes. Paul Diehl is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Does Paul Diehl hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D0871705) is associated with this NPI, valid through June 3, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Paul Diehl was last updated on July 21, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.

About Dr. Paul Diehl M.d. NPPES

NPPES Registry Identity

Specialties & Licenses

Other Identifiers 2

Medicare Participation & PECOS CMS

Medicare Enrollment Status

CLIA Laboratory Certificates CMS CLIA

Certificate of Waiver · 05D0871705

Areas of Expertise CMS Part B claims 20

Physician Visit Costs CMS claims · ZIP area

Medicare Quality Performance CMS QPP · MIPS

Reported Quality Measures

Referred Medical Equipment & Supplies CMS DME claims 13

Other Providers at the Same Location NPPES 20

Frequently Asked Questions NPPES & CMS

What is Paul Diehl's NPI number?

Where is Paul Diehl located?

What is Paul Diehl's specialty?

Is Paul Diehl enrolled in Medicare?

Does Paul Diehl hold a CLIA laboratory certificate?

When was this NPI record last updated?

Certificate of Waiver 05D0871705