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DR. DIANE HWEELAN MAK M.D.
NPI 1053632844
Internal Medicine in North Las Vegas, NV

Active since June 16, 2010PECOS Enrolled
6900 N PECOS RD, NORTH LAS VEGAS, NV 89086(702) 791-9000 Get Directions Write a Review

NPPES record last updated: July 6, 2023. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 6, 2023, Oct 19, 2022, Sep 10, 2021 and 2 more (5 updates tracked since 2020).

About Dr. Diane Hweelan Mak M.d. NPPES

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

DR. DIANE HWEELAN MAK M.D. (NPI 1053632844) is an individual internal medicine provider in North Las Vegas, Nevada, licensed in Nevada (21085) and active in the NPI registry since June 2010. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1053632844
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. DIANE HWEELAN MAKCredential: M.D.
Location Address6900 N PECOS RDNorth Las Vegas, NV 89086-4400
Mailing Address6900 N Pecos RdNorth Las Vegas, NV 89086-4400 · (702) 791-9000
Phone(702) 791-9000
Sole ProprietorNo
Enumeration DateJune 16, 2010
Last NPPES UpdateJuly 6, 20235 updates tracked since enumeration
NPPES CertifiedJuly 6, 2023
✔ NPI 1053632844 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NV · 21085
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.
6900 N PECOS RD, North Las Vegas, NV 89086
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Other Identifiers 2

Medicaid1053632844NV
Other21085NV · 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 (PECOS)

Dr. Diane Hweelan Mak 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 89086 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
$131.25 typical visit price
range $57.07 – $173.24
Typical copayment $32.81 (range $14.26 – $43.31)
Most-billed visit code 99204
Established Patient
$100.60 typical visit price
range $18.27 – $140.96
Typical copayment $25.15 (range $4.56 – $35.24)
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.

Referred Medical Equipment & Supplies CMS DME claims

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

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
1 supplier12 claims12 services$215.65 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 20

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

DR. JAMES HSIANG WANG MD
Radiology (Vascular & Interventional Radiology)
6900 N PECOS RD
NORTH LAS VEGAS, NV 89086
Clark County (702) 791-9000
ERICA LOSOYA-WOOD LCSW
Social Worker (Clinical)
6900 N PECOS RD
NORTH LAS VEGAS, NV 89086
Clark County (702) 791-9000
MORGAN MARIANO PHARMD
Pharmacist
6900 N PECOS RD
NORTH LAS VEGAS, NV 89086
Clark County (702) 791-9000
NATALYA SOUZA LCSW
Social Worker (Clinical)
6900 N PECOS RD
NORTH LAS VEGAS, NV 89086
Clark County (702) 791-9000
RY RALPH REYES DO
Psychiatry & Neurology (Psychiatry)
6900 N PECOS RD
NORTH LAS VEGAS, NV 89086
Clark County (702) 791-9000
GRACE SEONG EUN IM OMD
Acupuncturist
6900 N PECOS RD
NORTH LAS VEGAS, NV 89086
Clark County (702) 791-9024
SAMANTHA ZANCA RD, CSO, LD
Dietitian, Registered
6900 N PECOS RD
NORTH LAS VEGAS, NV 89086
Clark County (702) 791-9000
JENNY CASIELLO PHARMD
Pharmacist
6900 N PECOS RD
NORTH LAS VEGAS, NV 89086
Clark County (702) 791-9000

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 Diane Mak's NPI number?

The NPI number for Diane Mak is 1053632844. It was assigned to this individual provider in the NPPES registry on June 16, 2010.

Where is Diane Mak located?

Diane Mak practices at 6900 N Pecos Rd, North Las Vegas, NV 89086. The listed phone number is (702) 791-9000.

What is Diane Mak's specialty?

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

Is Diane Mak enrolled in Medicare?

Yes. Diane Mak is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Diane Mak was last updated on July 6, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.