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CATHERINE DIAMOND MD
NPI 1649350786
Internal Medicine - Infectious Disease in Orange, CA

Active since October 16, 2006PECOS EnrolledAccepts Medicare Assignment
100/100
CMS Quality Rating
UCI MEDICAL CENTER, 101 THE CITY DRIVE SOUTH, ORANGE, CA 92868(714) 456-8978 Get Directions Write a Review

NPPES record last updated: April 8, 2008. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Catherine Diamond Md NPPES

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

CATHERINE DIAMOND MD (NPI 1649350786) is an individual infectious disease provider in Orange, California, licensed in California (000000G84863) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS and is a graduate of Albany Medical College Of Union University (1991).

NPPES Registry Identity

NPI1649350786
Entity TypeIndividualFemale
Primary Taxonomy207RI0200X
Provider Legal NameCATHERINE DIAMONDCredential: MD
Location AddressUCI MEDICAL CENTER, 101 THE CITY DRIVE SOUTHOrange, CA 92868
Mailing AddressUci Department Of Medicine, Po Box 54509Los Angeles, CA 90054-4509 · (714) 456-6369
Phone(714) 456-8978
Sole ProprietorNo
Medical School CMSAlbany Medical College Of Union UniversityGraduated 1991
Enumeration DateOctober 16, 2006
Last NPPES UpdateApril 8, 2008
✔ NPI 1649350786 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License✔ Licensed in CA · 000000G84863
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
UCI MEDICAL CENTER, Orange, CA 92868
Open in Google Maps ↗

Other Identifiers 2

Medicare PINWG84863ACA
Medicare PINWG84863CCA

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

Catherine Diamond Md 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 ID9234210824
PECOS Enrollment IDI20080122000292
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 5

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.
234 services93 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
52 services52 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.
50 services30 patients
Telephone medical discussion with physician, 21-30 minutes 99443
This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.
42 services22 patients
Telephone, internet, or electronic health record assessment and management with written report by consulting physician, at least 5 minutes 99451
This service involves a consulting physician assessing your health condition via a phone or internet interaction. The doctor will spend at least 5 minutes discussing your health concerns. Afterwards, a written report summarizing the findings and recommendations will be provided for your reference.
16 services16 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92868 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.

100/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality82.4
Promoting Interoperability100
Improvement Activities40

Referred Medical Equipment & Supplies CMS DME claims 2

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

Enteral feeding supply kit; syringe fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4034
Other-Enteral and Parenteral · category OB006N
1 supplier12 claims360 services$2.57 avg. paid by Medicare
Enteral formula, nutritionally complete, calorically dense (equal to or greater than 1.5 kcal/ml) with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4152
Other-Enteral and Parenteral · category OB006N
1 supplier12 claims7,668 services$0.27 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 20

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

CATHERINE CUMMINS MD
Family Medicine
UCI MEDICAL CENTER, 101 THE CITY DRIVE SOUTH
ORANGE, CA 92868
Orange County (714) 456-8978
ROGER L CRUMLEY MD
Otolaryngology
UCI MEDICAL CENTER, 101 THE CITY DRIVE SOUTH
ORANGE, CA 92868
Orange County (714) 456-2986
SCOTT RUDKIN MD
Emergency Medicine
UCI MEDICAL CENTER, 101 THE CITY DRIVE SOUTH
ORANGE, CA 92868
Orange County (714) 456-2986
ANDREW REIKES MD
Internal Medicine (Endocrinology, Diabetes & Metabolism)
UCI MEDICAL CENTER, 101 THE CITY DRIVE SOUTH
ORANGE, CA 92868
Orange County (714) 456-8978
TALLIE Z BARAM MD
Pediatrics (Neurodevelopmental Disabilities)
UCI MEDICAL CENTER, 101 THE CITY DRIVE SOUTH
ORANGE, CA 92868
Orange County (714) 456-8978
JOHN C FOX MD
Emergency Medicine
UCI MEDICAL CENTER, 101 THE CITY DRIVE SOUTH
ORANGE, CA 92868
Orange County (714) 456-2986
MICHAEL J STAMOS MD
Surgery
UCI MEDICAL CENTER, 101 THE CITY DRIVE SOUTH
ORANGE, CA 92868
Orange County (714) 456-8978
RICHARD S NEWMAN MD
Pathology (Clinical Pathology/Laboratory Medicine)
UCI MEDICAL CENTER, 101 THE CITY DRIVE SOUTH
ORANGE, CA 92868
Orange County (714) 456-2986

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 Catherine Diamond's NPI number?

The NPI number for Catherine Diamond is 1649350786. It was assigned to this individual provider in the NPPES registry on October 16, 2006.

Where is Catherine Diamond located?

Catherine Diamond practices at Uci Medical Center 101 The City Drive South, Orange, CA 92868. The listed phone number is (714) 456-8978.

What is Catherine Diamond's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Catherine Diamond enrolled in Medicare?

Yes. Catherine Diamond 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 Catherine Diamond was last updated on April 8, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.