DR. MARK ARNOLD WELCH D.O.
NPI 1225063555
Psychiatry & Neurology - Psychiatry in Loma Linda, CA

Active since July 12, 2006PECOS EnrolledAccepts Medicare Assignment
85.18/100
CMS Quality Rating
11374 MOUNTAIN VIEW AVE, LOMA LINDA, CA 92354(909) 558-6094 Get Directions Write a Review

NPPES record last updated: September 25, 2008. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Mark Arnold Welch D.o. NPPES

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

DR. MARK ARNOLD WELCH D.O. (NPI 1225063555) is an individual psychiatry provider in Loma Linda, California, licensed in California (2OA8950) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Other (2003).

NPPES Registry Identity

NPI1225063555
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. MARK ARNOLD WELCHCredential: D.O.
Location Address11374 MOUNTAIN VIEW AVELoma Linda, CA 92354-3830
Mailing Address7132 Daybreak PlRancho Cucamonga, CA 91701-6302 · (951) 966-5802
Sole ProprietorYes
Medical School CMSOtherGraduated 2003
Enumeration DateJuly 12, 2006
Last NPPES UpdateSeptember 25, 2008
NPI 1225063555 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License Licensed in CA · 2OA8950
Definition

A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

11374 MOUNTAIN VIEW AVE, Loma Linda, CA 92354

Other Identifiers 1

Other2OA89500CA · Medicare Number

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. Mark Arnold Welch D.o. 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 ID4385648500
PECOS Enrollment IDI20060830000583
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.

Areas of Expertise CMS Part B claims 6

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.
161 services90 patients
Sleep study including heart rate, breathing, airflow, and effort 95806
A sleep study monitors your heart rate, breathing patterns, airflow, and physical effort while you sleep. It helps identify sleep disorders by tracking your sleep stages and cycles. This data aids doctors in diagnosing and treating sleep-related issues.
103 services103 patients
Sleep study in sleep lab with continuous airway pressure (6 years or older) 95811
A sleep study in a sleep lab with continuous airway pressure is a test for individuals aged 6 and above. It monitors your sleep patterns to check for disorders like sleep apnea. Continuous airway pressure helps keep your airways open while you sleep, improving your breathing.
75 services70 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.
61 services45 patients
Sleep study in sleep lab (6 years or older) 95810
A sleep study in a sleep lab is a non-invasive overnight test that monitors your body while you sleep. It helps doctors understand your sleep patterns and identify any issues like sleep apnea or insomnia. You'll be connected to equipment that tracks your heart rate, brain waves, breathing, and movements.
42 services41 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.
32 services32 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92354 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
$179.42 typical visit price
range $59.60 – $179.42
Typical copayment $44.85 (range $14.90 – $44.85)
Most-billed visit code 99205
Established Patient
$74.08 typical visit price
range $19.37 – $146.42
Typical copayment $18.52 (range $4.84 – $36.60)
Most-billed visit code 99213
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.

85.18/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality71.81
Promoting Interoperability82
Improvement Activities40
Cost64.54

Reported Quality Measures

Pneumococcal Vaccination Status for Older Adults
Percentage of patients 65 years of age and older who have ever received a pneumococcal vaccine
100%71 patients5/55-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 17

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

Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
8 suppliers75 claims75 services$30.54 avg. paid by Medicare
Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
8 suppliers54 claims54 services$69.18 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
6 suppliers55 claims133 services$28.78 avg. paid by Medicare
Cushion for use on nasal mask interface, replacement only, each A7032
DME-Other DME · category DE001N
7 suppliers33 claims180 services$15.72 avg. paid by Medicare
Pillow for use on nasal cannula type interface, replacement only, pair A7033
DME-Other DME · category DE001N
4 suppliers44 claims258 services$13.62 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
9 suppliers83 claims83 services$47.65 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 19

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

Psychiatry & Neurology (Psychiatry)
11374 MOUNTAIN VIEW AVE, SUITE A
LOMA LINDA, CA 92354
Internal Medicine
11374 MOUNTAIN VIEW AVE, SUITE A
LOMA LINDA, CA 92354
Physical Therapist
11374 MOUNTAIN VIEW AVE, SUITE A
LOMA LINDA, CA 92354
Psychologist
11374 MOUNTAIN VIEW AVE, SUITE A
LOMA LINDA, CA 92354
Psychiatry & Neurology (Psychiatry)
11374 MOUNTAIN VIEW AVE, SUITE A
LOMA LINDA, CA 92354
Internal Medicine
11374 MOUNTAIN VIEW AVE, SUITE A
LOMA LINDA, CA 92354
Psychologist
11374 MOUNTAIN VIEW AVE, STE A
LOMA LINDA, CA 92354
Community Health Worker
11374 MOUNTAIN VIEW AVE
LOMA LINDA, CA 92354

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 Mark Welch's NPI number?

The NPI number for Mark Welch is 1225063555. It was assigned to this individual provider in the NPPES registry on July 12, 2006.

Where is Mark Welch located?

Mark Welch practices at 11374 Mountain View Ave, Loma Linda, CA 92354. The listed phone number is (909) 558-6094.

What is Mark Welch's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Mark Welch enrolled in Medicare?

Yes. Mark Welch 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.

When was this NPI record last updated?

The NPPES record for Mark Welch was last updated on September 25, 2008. NPI Profile syncs with the weekly NPPES data releases published by CMS.