Medicare Enrolled

Dr. Mark Chandler, MD

Psychiatry · Durham, NC
Practice pattern: Clinical Cardiology — Primarily office-based clinical cardiology
3713 UNIVERSITY DR, Durham, NC 27707
9194016212
Registered in NPPES since 2006
NPI: 1265452270 verify on NPPES ↗
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating. This page presents federal public records about Dr. Chandler from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Chandler

Dr. Mark Chandler is a psychiatry specialist in Durham, NC, with 20 years of NPI registration. Based on federal Medicare data, Dr. Chandler performed 1,603 Medicare services in 2023. These records do not provide a deduplicated patient total.

Between the years covered by Open Payments, Dr. Chandler received a total of $17,080 from 48 pharmaceutical and/or device companies across 1004 payment records. A record can group multiple payments. These transfers are publicly reported through CMS Open Payments. Disclosure alone does not establish their effect on care. A reliable breakdown by payment category is not available in this snapshot. Patients may wish to discuss these relationships with their provider.

The Data Coverage level for Dr. Chandler is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.

✓ 20 years of NPI registration ▲ Top 2% volume in NC $17,080 industry payments

Medicare Practice Summary — 2023

Medicare Utilization ↗
1,603
Medicare services
Top 2% in NC for psychiatry
Not available
Unique patients (not deduplicated)
$49
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →

Top procedures by volume

Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.

Procedure Volume Avg. paid Avg. submitted
Nursing facility visit, low complexity
A daily follow-up visit for an existing patient in a nursing facility involving straightforward medical decision making. The visit requires at least 15 minutes of time if time is used to determine the level of care.
 836 $45 $90
Office visit, established patient (20-29 min)
An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition.
 767 $53 $150
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. These counts do not measure clinical quality or years of experience.

Industry Payment Transparency

Open Payments through 2024 ↗
$17,080
Total received (2018-2024)
Avg $2,440/year across 7 years
Top 5% in NC for psychiatry
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
48
Companies
1,004
Payment records
Payments are publicly reported; disclosure does not establish legality · Not evidence of wrongdoing · How to interpret →

Payment categories are unavailable while the source breakdown is being rebuilt. Company and year totals do not identify how much belongs to each category.

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2024
$2,771
2023
$2,421
2022
$2,941
2021
$2,800
2020
$1,987
2019
$2,653
2018
$1,506

Payments by company (2024)

Alkermes, Inc.
$509
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)
$484
ABBVIE INC.
$300
Janssen Pharmaceuticals, Inc
$233
Lundbeck LLC
$197
Teva Pharmaceuticals USA, Inc.
$194
Vanda Pharmaceuticals Inc.
$176
Otsuka America Pharmaceutical, Inc.
$162
E.R. Squibb & Sons, L.L.C.
$103
Almatica Pharma LLC
$85
Validus Pharmaceuticals LLC
$56
Supernus Pharmaceuticals, Inc.
$50
IRONSHORE PHARMACEUTICALS INC.
$42
IDORSIA PHARMACEUTICALS US INC
$40
Neos Therapeutics, LP
$39
Bausch Health US, LLC
$34
Tris Pharma Inc
$18
PFIZER INC.
$18
Takeda Pharmaceuticals U.S.A., Inc.
$17
Neurocrine Biosciences, Inc.
$16
Top 3 companies account for 46.6% of 2024 payments
All-time payments by company (2018-2024) ›
Sunovion Pharmaceuticals Inc.
$2,849
Alkermes, Inc.
$1,706
Teva Pharmaceuticals USA, Inc.
$1,438
Otsuka America Pharmaceutical, Inc.
$1,084
Janssen Pharmaceuticals, Inc
$1,004
Neos Therapeutics, LP
$988
Takeda Pharmaceuticals U.S.A., Inc.
$965
ITI, Inc.
$952
Vanda Pharmaceuticals Inc.
$897
Neurocrine Biosciences, Inc.
$696
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)
$484
Lundbeck LLC
$448
Supernus Pharmaceuticals, Inc.
$406
ABBVIE INC.
$365
Tris Pharma Inc
$282
Validus Pharmaceuticals LLC
$213
Avanir Pharmaceuticals, Inc.
$186
Ironshore Pharmaceuticals Inc.
$182
Shire North American Group Inc
$176
Adlon Therapeutics L.P.
$160
Noven Therapeutics, LLC
$154
Corium, LLC
$141
AbbVie Inc.
$133
E.R. Squibb & Sons, L.L.C.
$103
IDORSIA PHARMACEUTICALS US INC
$100
Bausch Health US, LLC
$100
Rhodes Pharmaceuticals L.P.
$93
Almatica Pharma LLC
$85
Vertical Pharmaceuticals, LLC
$84
ARBOR PHARMACEUTICALS, INC.
$64
Lilly USA, LLC
$63
JAZZ PHARMACEUTICALS INC.
$57
Amgen Inc.
$52
IRONSHORE PHARMACEUTICALS INC.
$42
Jazz Pharmaceuticals Inc.
$42
Indivior Inc.
$40
Allergan, Inc.
$33
Allergan Inc.
$32
Merck Sharp & Dohme Corporation
$30
HARMONY BIOSCIENCES LLC
$22
Novartis Pharmaceuticals Corporation
$20
PFIZER INC.
$18
SUN PHARMACEUTICAL INDUSTRIES INC.
$17
Corium, Inc.
$16
Avion Pharmaceuticals
$15
Merck Sharp & Dohme LLC
$15
Neuronetics, Inc.
$15
Harmony Biosciences LLC
$13
Top 3 companies account for 35.1% of all-time payments
Associated products mentioned in payments ›
ABILIFY MAINTENA · ABILIFY MYCITE · ADHANSIA XR · AJOVY · AMYVID · APLENZIN · ARISTADA · AUSTEDO · AZSTARYS · Adzenys XR-ODT · Aimovig · Aptensio XR · Austedo XR · Azstarys · BELSOMRA · BRINTELLIX · CAPLYTA · COBENFY · Cotempla XR-ODT · DIVIGEL · DRIZALMA SPRINKLE · Dyanavel XR · Equetro · Evekeo · FANAPT · Fanapt · HETLIOZ · Horizant · INGREZZA · INVEGA SUSTENNA · INVEGA TRINZA · JORNAY PM · Jornay PM 20mg capsules (Bottle of 100) · LATUDA · LOREEV XR · LYBALVI · METHYLPHENIDATE 72 · MYDAYIS · Methylphenidate Hydrochloride · NEUROSTAR TMS THERAPY · NUEDEXTA · NURTEC ODT · ONGENTYS · OSMOLEX ER · PERSERIS · QELBREE · QUVIVIQ · Qelbree · Quillichew ER · Quillivant XR · REXULTI · SECUADO · SPRAVATO · SUNOSI · Secuado · TRINTELLIX · Trintellix · UZEDY · VIVITROL · VRAYLAR · VYVANSE · Vivitrol · WELLBUTRIN · Wakix · XYREM · XYWAV · Xelstrym
Should you be concerned? Industry payments are disclosed through CMS Open Payments. Disclosure alone does not establish their purpose, legality, or effect on care. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Looking for a psychiatry specialist in Durham?
Compare psychiatrists in the Durham area by procedure volume, costs, and industry payment transparency.
Browse psychiatrists nearby

Geographic Context

Psychiatrists in nearby ZIP areas
538
County median income
$79,501
Nearest hospital to ZIP centroid (approximate)
DUKE UNIVERSITY HOSPITAL
5.1 mi

Data Sources

Provider Registry ✓ NPPES NPPES snapshot; verify current record
Medicare Enrollment ✓ PECOS PECOS snapshot
Practice Data ✓ Medicare Util. Annual (CY lag)
Industry Payments ✓ Open Payments CY 2024
Disciplinary History — Not included N/A

This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →

Summary

Dr. Chandler is a clinical cardiology specialist, with above-average Medicare volume (top 2% in NC), with 20 years of NPI registration.

This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →

Frequently Asked Questions

Is Dr. Chandler experienced with nursing facility visit, low complexity?
Based on Medicare claims data, Dr. Chandler performed 836 nursing facility visit, low complexity services. These records cover Medicare fee-for-service activity, including eligible younger beneficiaries; they do not measure total practice volume or clinical quality.
Does Dr. Chandler receive payments from pharmaceutical companies?
Yes. Dr. Chandler received a total of $17,080 from 48 companies across 1,004 payment records. A record can group multiple payments. These transfers are publicly disclosed through CMS Open Payments. Disclosure alone does not establish their legality or effect on care. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Chandler's costs compare to other psychiatrists in Durham?
Dr. Chandler's average Medicare payment per service is $49. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Chandler) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating the presence of registry, enrollment, activity or payment records, not verified experience or clinical quality. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Source publication dates and the snapshots loaded on this site can differ. Rebuilding a page does not refresh its source records. Check the Medicare reporting year and the payment interval shown above; consult the linked official sources for newer releases and current registry details. See our data freshness policy →

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About this page

This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.

This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.

Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology

Data Disclaimer — Data sourced from the Centers for Medicare & Medicaid Services (CMS): National Plan and Provider Enumeration System (NPPES), Open Payments program, Medicare Provider Utilization and Payment Data, and Provider Enrollment & Certification data (PECOS). Published under the Freedom of Information Act (FOIA). This website is not affiliated with, endorsed by, or authorized by CMS, HHS, or the U.S. Government. Data may contain errors as reported to CMS by providers and reporting entities. Industry payment disclosure alone establishes neither wrongdoing nor legality. Medicare data reflects only patients aged 65+ or those with qualifying disabilities. For corrections, contact CMS directly. This information does not constitute medical advice and should not be used as the sole basis for choosing a healthcare provider. Procedure descriptions use plain language and do not reference CPT® codes, which are copyrighted by the American Medical Association. Full methodology → · Report a data error → · Privacy policy →