Dr. Nathan Wasson Massengill, MD
- Medicare services, 2024
- 86
- Medicare patients, 2024
- 26
- Part D claims, 2024
- 258
- Hospital affiliations
- 2
- Industry payments
- $38
- Practice address
- 501 Billingsley Rd, Charlotte, NC 28211
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Atrium Health Behavioral Health Emergency Department - Unit
Acute Care Hospital-Unit · Charlotte, North Carolina
Find Dr. Massengill's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Nathan Wasson Massengill is a psychiatrist in Charlotte, North Carolina
Dr. Massengill practices at Atrium Health Behavioral Health Emergency Department - Unit in Charlotte, North Carolina.
Dr. Massengill's NPI, 1124523428, was assigned on March 28, 2018. Dr. Massengill holds North Carolina license 2022-01113.
- NPI
- 1124523428NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0648528703
- NPI enumeration date
- March 28, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nathan Wasson Massengill practices at Atrium Health Behavioral Health Emergency Department - Unit in Charlotte, North Carolina
Dr. Massengill's primary practice is Atrium Health Behavioral Health Emergency Department - Unit, at 501 Billingsley Rd, Charlotte, NC 28211.
- Atrium Health Behavioral Health Emergency Department - Unit501 Billingsley Rd, Charlotte, NC 28211
Source: Dmand AI Affiliation Data
Dr. Nathan Wasson Massengill is affiliated with 2 sites of care and 3 medical groups
Dr. Massengill's primary practice is Atrium Health Behavioral Health Emergency Department - Unit in Charlotte, North Carolina. Dr. Massengill is also affiliated with Atrium Health Carolinas Medical Center. The medical group on file is Atrium Health Levine Children's Gastroenterology. Dmand AI also links Dr. Massengill to 2 more medical groups, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Nathan Wasson Massengill's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Massengill practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Atrium Health Behavioral Health Emergency Department - Unit | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nathan Wasson Massengill is one of 1,177 psychiatrists in North Carolina
Psychiatry is Dr. Massengill's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Massengill is licensed in North Carolina.
Specialties and state licenses
- Psychiatry, North CarolinaPrimary
Psychiatrists near Dr. Massengill
Counts of psychiatrists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Nathan Wasson Massengill billed Medicare for 86 services in 2024
CMS data shows 86 Medicare services from Dr. Massengill across 4 procedure codes in 2024, for 26 Medicare patients. Medicare paid $5,541 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Massengill's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 932024: 868%
Dr. Massengill compared with the North Carolina median for psychiatrists, 2024
- Dr. Massengill
- North Carolina median
- Medicare services
- 86vs 13034% below
- Medicare patients
- 26vs 4846% below
- Part D claims
- 85vs 13236% below
Medians across 1,345 psychiatrists in North Carolina with Dmand AI profiles that report each measure.
Dr. Massengill's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Massengill and other psychiatrists in North Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nathan Wasson Massengill treated 26 Medicare patients in 2024, average age 46
CMS counts 26 Medicare patients who saw Dr. Massengill in 2024. 75% of them have anxiety, and 75% have schizophrenia and other psychoses. Their average risk score is 1.59, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Massengill's median patient age at 46, with 57% women.
Chronic conditions among Dr. Massengill's Medicare patients, 2024
- Anxiety75%
- Schizophrenia and other psychoses75%
- Mood disorders65%
- High blood pressure62%
- Tobacco use62%
- Depression58%
- Alcohol and drug use disorders50%
- Bipolar disorder50%
Share of Medicare patients with each condition. A patient can have several.
Dr. Massengill's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 46
Patient panel by sex, all payers
- Women57%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nathan Wasson Massengill wrote 258 Medicare Part D claims in 2024
In 2024, Dr. Massengill wrote 258 Medicare Part D claims for 50 patients. 93% of them were for generic drugs. CMS names the drug for 85 of them, across 4 drugs with 11 or more claims each, at $646 in total drug cost. In 2023, CMS named 55 claims across 3 drugs.
Dr. Massengill's Part D claims by kind of drug, 2024
- Generic240 claims93%
- Brand-name18 claims7%
Dr. Massengill's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 552024: 8555%
Drugs named by CMS: 4 in 2024, 3 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Nathan Wasson Massengill takes part in Medicare
Dr. Massengill accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Nathan Wasson Massengill received $38 in industry payments from 2023 to 2025
CMS Open Payments shows 2 general payments to Dr. Massengill from 2 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $19.
General payments to Dr. Massengill by program year, 2023 to 2025
Companies that paid Dr. Massengill the most, 2023 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Nathan Wasson Massengill's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Nathan Wasson Massengill
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Nathan Wasson Massengill's NPI number?
Dr. Nathan Wasson Massengill's NPI number is 1124523428. It was assigned on March 28, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. Nathan Wasson Massengill?
Dr. Nathan Wasson Massengill is a psychiatrist in Charlotte, North Carolina. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Nathan Wasson Massengill practice?
Dr. Massengill practices at 501 Billingsley Rd, Charlotte, NC 28211. Dr. Massengill's primary practice is Atrium Health Behavioral Health Emergency Department - Unit in Charlotte, North Carolina. Dmand AI also links Dr. Massengill to 2 medical groups.
What is Dr. Nathan Wasson Massengill's medical license number?
Dr. Massengill holds North Carolina license 2022-01113.
Which hospitals is Dr. Nathan Wasson Massengill affiliated with?
Dr. Massengill is affiliated with Atrium Health Carolinas Medical Center. Dmand AI links Dr. Massengill to 1 more hospital.
What medical group is Dr. Nathan Wasson Massengill part of?
Dr. Massengill is linked to Atrium Health Levine Children's Gastroenterology. Dmand AI links Dr. Massengill to 2 more medical groups.
Does Dr. Nathan Wasson Massengill accept Medicare?
Yes. CMS data shows Dr. Massengill billed Medicare for 86 services in 2024, and Dr. Massengill accepts Medicare assignment.
How many Medicare patients does Dr. Nathan Wasson Massengill see?
CMS counts 26 Medicare patients who saw Dr. Massengill in 2024, with an average age of 46.
What services does Dr. Nathan Wasson Massengill bill to Medicare?
In 2024, Dr. Massengill's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99231) and hospital inpatient care (99239).
What drugs does Dr. Nathan Wasson Massengill prescribe most?
In 2024 Medicare Part D data, Dr. Massengill's most prescribed drugs by claims were Trazodone HCl, Hydroxyzine HCl and Gabapentin.
Has Dr. Nathan Wasson Massengill received payments from drug or device companies?
CMS Open Payments shows $38 in general payments to Dr. Massengill from 2 companies from 2023 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Nathan Wasson Massengill been practicing?
Dr. Massengill graduated from medical school in 2018, 8 years ago.
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