Dr. Robert C. May, MD
- Medicare services, 2020
- 188
- Part D claims, 2021
- 12
- Industry payments
- $268
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 1540 E Evergreen St, Springfield, MO 65803-4300
- Practice phone
- Call (417) 823-2900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Chest And Sleep Institute Of Springfield
Multi-specialty group site · Springfield, Missouri
Find Dr. May'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. Robert C. May is a nephrologist in Springfield, Missouri
Dr. May practices at Chest And Sleep Institute Of Springfield in Springfield, Missouri.
Dr. May's NPI, 1376585257, was assigned on June 12, 2006. Dr. May holds Missouri license 112417.
- NPI
- 1376585257NPI Registry (opens in a new tab)
- NPI enumeration date
- June 12, 2006
- NPI status
- Active
- Practice phone
- (417) 823-2900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert C. May practices at Chest and Sleep Institute of Springfield in Springfield, Missouri
Dr. May's primary practice is Chest and Sleep Institute of Springfield, at 1540 E Evergreen St, Springfield, MO 65803-4300. The practice phone is (417) 823-2900.
- Chest and Sleep Institute of Springfield1540 E Evergreen St, Springfield, MO 65803-4300Phone(417) 823-2900
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert C. May is affiliated with 1 site of care and 1 medical group
Dr. May's primary practice is Chest And Sleep Institute Of Springfield in Springfield, Missouri. Dmand AI also links Dr. May to 1 medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Robert C. May's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. May practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Chest And Sleep Institute Of Springfield | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert C. May is one of 249 nephrologists in Missouri
Nephrology is Dr. May's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. May is licensed in Missouri.
Specialties and state licenses
- Nephrology, MissouriPrimary
Nephrologists near Dr. May
Counts of nephrologists 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. Robert C. May billed Medicare for 188 services in 2020
CMS data shows 188 Medicare services from Dr. May across 6 procedure codes in 2020. Medicare paid $22,897 for them.
Dr. May's Medicare services by type, 2019 to 2020
- 2019
- 2020
- Tests and treatments
- 2019: 8242020: 10088%
- Office and hospital visits
- 2019: 6872020: 8887%
- Lab and pathology
- 2019: 462020: 0100%
- Surgery
- 2019: 212020: 0100%
Where Dr. May's Medicare services took place, 2020
- In an office13069%
- In a facility5831%
Dr. May compared with the Missouri median for nephrologists, 2020
- Dr. May
- Missouri median
- Medicare services
- 188vs 85778% below
- Part D claims
- 12vs 77998% below
Medians across 240 nephrologists in Missouri with Dmand AI profiles that report each measure.
Dr. May's most billed Medicare procedure codes, 2020
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. May?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. May and other nephrologists in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert C. May's patients have a median age of 71
Across all payers, Dmand AI patient panel data puts Dr. May's median patient age at 71, with 100% women.
Dr. May's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Robert C. May wrote 12 Medicare Part D claims in 2021
In 2021, Dr. May wrote 12 Medicare Part D claims. They cover 1 drug, with $74 in total drug cost. In 2020, CMS named 664 claims across 29 drugs.
Dr. May's most prescribed drugs by claims, 2021
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, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 6642021: 1298%
Drugs named by CMS: 1 in 2021, 29 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Robert C. May received $268 in industry payments from 2016 to 2020
CMS Open Payments shows 8 general payments to Dr. May from 8 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 100% of the total. St. Jude Medical, Inc. paid the most, $116.
General payments to Dr. May by program year, 2016 to 2020
Companies that paid Dr. May the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Robert C. May'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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. Robert C. May
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. Robert C. May's NPI number?
Dr. Robert C. May's NPI number is 1376585257. It was assigned on June 12, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert C. May?
Dr. Robert C. May is a nephrologist in Springfield, Missouri. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Robert C. May practice?
Dr. May practices at 1540 E Evergreen St, Springfield, MO 65803-4300. Dr. May's primary practice is Chest And Sleep Institute Of Springfield in Springfield, Missouri. Dmand AI also links Dr. May to 1 medical group.
What is Dr. Robert C. May's office phone number?
The practice phone on file for Dr. May is (417) 823-2900.
What is Dr. Robert C. May's medical license number?
Dr. May holds Missouri license 112417.
Does Dr. Robert C. May accept Medicare?
Yes. CMS data shows Dr. May billed Medicare for 188 services in 2020.
What services does Dr. Robert C. May bill to Medicare?
In 2020, Dr. May's most billed Medicare services were dialysis (90961), hospital inpatient care (99232) and dialysis (90962).
What drugs does Dr. Robert C. May prescribe most?
In 2021 Medicare Part D data, Dr. May's most prescribed drugs by claims were Isosorbide Mononitrate ER.
Has Dr. Robert C. May received payments from drug or device companies?
CMS Open Payments shows $268 in general payments to Dr. May from 8 companies from 2016 to 2020. The largest total came from St. Jude Medical, Inc.
How long has Dr. Robert C. May been practicing?
Dr. May's NPI was assigned in 2006.
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