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DR. MAXIMO CHRISTIAN DIAMOND M.D.
NPI 1063519932
Internal Medicine in Orange, CA

Active since September 20, 2006PECOS EnrolledAccepts Medicare Assignment
600 CITY PARKWAY WEST, SUITE 400, ORANGE, CA 92868(714) 221-5182(714) 244-4533 Get Directions Write a Review

NPPES record last updated: March 27, 2015. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Maximo Christian Diamond M.d. NPPES

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

DR. MAXIMO CHRISTIAN DIAMOND M.D. (NPI 1063519932) is an individual internal medicine provider in Orange, California, licensed in California (G74989) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, Irvine, California College Of Medicine (1991).

NPPES Registry Identity

NPI1063519932
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. MAXIMO CHRISTIAN DIAMONDCredential: M.D.
Location Address600 CITY PARKWAY WEST, SUITE 400Orange, CA 92868-2900
Mailing AddressPo Box 4140Monarch Beach, CA 92629 · (714) 221-5182 · Fax (714) 244-4533
Phone(714) 221-5182
Fax(714) 244-4533
Sole ProprietorYes
Medical School CMSUniversity Of California, Irvine, California College Of MedicineGraduated 1991
Enumeration DateSeptember 20, 2006
Last NPPES UpdateMarch 27, 2015
✔ NPI 1063519932 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 · G74989
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.
600 CITY PARKWAY WEST, Orange, CA 92868
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Other Names 1

Professional Name (2)Dr. Max Diamond

Other Identifiers 1

Medicare UPINF92807CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Maximo Christian Diamond 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 ID4082878699
PECOS Enrollment IDI20120612000371
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.

Medicare Billing Reassignments

3

Medicare enrollment records show Maximo Diamond reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Ab Safe Haven Palliative & Hospice Care, Inc.
15 mi
Hospice Care, Community Based
2855 TEMPLE AVE STE B
Signal Hill, CA 90755
  • Reassigned Medicare billing, California enrollment
  • 7 clinicians in this Medicare group
NPI 1669764726 (562) 426-7500
Wound Wellness Center
25 mi
Clinic/Center
2345 W FOOTHILL BLVD STE 4
Upland, CA 91786
  • Reassigned Medicare billing, California enrollment
NPI 1770382988 (310) 435-7575
Supportive Wound Care, Inc
25 mi
Clinic/Center
1202 MONTE VISTA AVE STE 6
Upland, CA 91786
  • Reassigned Medicare billing, California enrollment
  • 3 clinicians in this Medicare group
NPI 1891545083 (310) 435-7575

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

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 Maximo Diamond's NPI number?

The NPI number for Maximo Diamond is 1063519932. It was assigned to this individual provider in the NPPES registry on September 20, 2006. The provider is also known as Dr. Max Diamond.

Where is Maximo Diamond located?

Maximo Diamond practices at 600 City Parkway West Suite 400, Orange, CA 92868. The listed phone number is (714) 221-5182.

What is Maximo Diamond's specialty?

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

Is Maximo Diamond enrolled in Medicare?

Yes. Maximo 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.

Which organizations bill Medicare for Maximo Diamond's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Maximo Diamond reassigns Medicare benefits to 3 organizations: Ab Safe Haven Palliative & Hospice Care, Inc. (Signal Hill, CA), Wound Wellness Center (Upland, CA) and Supportive Wound Care, Inc (Upland, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Maximo Diamond's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Maximo Diamond was last updated on March 27, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.