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CHANG, KHAIMD NPI 1881665222 Clinician

Internal Medicine · MOUNT DORA, FL

Specialty Internal Medicine — from billed Medicare claims
In practice about 37 years since medical school (class of 1989, self-reported to CMS)
Location MOUNT DORA, FL · NPPES registered location
Active in data Billed Medicare 2020–2024 (5 consecutive years)
Scale 57 codes billed · 11,750 disclosed volume (CY2024 — most recent year in data)
Current groups

Group affiliation since 2019

20192026
LEGACY HEALTHCARE SERVICES INC
2025–2026
LAKEVIEW HEALTHCARE SYSTEM, LLC
2019–2026
CORA HEALTH SERVICES, INC.
2023–2024
PHYSICIANS OF CENTRAL FLORIDA, LLC
2023

The roster archive begins in 2019, so a span starting at 2019 may reach back further. Membership spans only — no volume is attributed to any group here.

NPPES registry · CMS Doctors & Clinicians registry · Medicare Part B physician/supplier claims · NPPES record last updated 2018-01

Year: 2024 · 2023 · 2022  · 2021  · 2020 

Provider overview · all codes · CY2024

The full analytics for this provider

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The billed-volume positioning, practice focus, and economics behind this provider — computed on the same disclosed Medicare Part B data.

This provider's disclosed Medicare payments across all codes were in CY2024. Included with Platform.

  • Payment, service & beneficiary totals — the disclosed scale, all codes
  • Practice profile — focus & reach — top codes by share of services
  • Office vs. facility setting mix — place-of-service code split
  • Volume over five years — discrete yearly counts, no rate
  • Peer positioning — service volume — percentile among specialty peers, cohort & year disclosed
  • Peer positioning — code breadth — how many codes billed, vs peers

Peer positioning shows billed-volume and code-breadth positions among specialty peers, not measures of care (a provider's true volume position can only be higher, never lower). All figures disclosed Medicare Part B fee-for-service; volumes are personal to this NPI, not attributed to any group.

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Procedures billed to Medicare Part B (2024)

Medicare Part B FFS · CY2024 · as published by CMS
CodeDescription Volume Beneficiary-episodes Avg charge Avg Medicare payment
36415 Insertion of needle into vein for collection of blood sample
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count
80053 Blood test, comprehensive group of blood chemicals
80061 Blood test, lipids (cholesterol and triglycerides)
83721 Ldl cholesterol level
81000 Manual urinalysis test with examination using microscope, non-automated
G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
83021 Hemoglobin analysis and measurement, chromatography
84443 Blood test, thyroid stimulating hormone (tsh)
96372 Injection of drug or substance under skin or into muscle
84439 Thyroxine (thyroid chemical), free
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg
82043 Urine microalbumin (protein) level
82570 Creatinine level to test for kidney function or muscle injury
G0008 Administration of influenza virus vaccine
90653 Influenza vaccine, inactivated
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
20610 Aspiration and/or injection of fluid from large joint
82306 Vitamin d-3 level
85610 Blood test, clotting time
93793 Anticoagulant management of patient taking warfarin
83880 Natriuretic peptide (heart and blood vessel protein) level
82607 Cyanocobalamin (vitamin b-12) level
G0009 Administration of pneumococcal vaccine
90732 Pneumococcal vaccine, 23-valent
81003 Automated urinalysis test
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional
G0103 Prostate cancer screening; prostate specific antigen test (psa)
96127 Assessment of emotional or behavioral problems
87804 Detection test by immunoassay with direct visual observation for influenza virus
84153 Psa (prostate specific antigen) measurement, total
85652 Red blood cell sedimentation rate, to detect inflammation, automated
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
87811 Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19)
G0180 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
80048 Blood test, basic group of blood chemicals (calcium, total)
98966 Telephone medical discussion provided by nonphysician professional, 5-10 minutes
83970 Parathormone (parathyroid hormone) level
76770 Complete ultrasound scan behind abdominal cavity
76536 Ultrasound scan of head and neck soft tissue
93306 Ultrasound of heart with color-depicted blood flow, rate, direction and valve function
94762 Test to measure oxygen level in blood using ear or finger device continuously overnight
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
15853 Removal of sutures or staples
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage
95811 Sleep study in sleep lab with continuous airway pressure (6 years or older)
84100 Phosphate level
95810 Sleep study in sleep lab (6 years or older)
83735 Magnesium level
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
80076 Liver function blood test panel
69210 Removal of impacted ear wax
80307 Testing for presence of drug, by chemistry analyzers
82728 Ferritin (blood protein) level
90471 Administration of vaccine

These are this provider's own Medicare Part B fee-for-service volumes (CMS public data). CMS suppresses rows with fewer than 11 beneficiaries, so low-volume codes may be missing entirely — absence is not zero. Beneficiary-episodes count CMS's per-setting beneficiary figures, not unique patients. Average charge and average Medicare payment are weighted by service volume across office and facility settings. Volumes on this page are personal to the NPI and are not attributed to any physician group. See Methods & Sources.