NPPES file of Aug 9, 2026

Jennifer K. May, MD

Internal Medicine Physician · Rapid City, SD

Jennifer K. May, MD is an internal medicine physician with a practice address in Rapid City, South Dakota, and NPI 1891765475, issued on Jan 25, 2006. Check the license (South Dakota 5639, as entered in NPPES) on the South Dakota Board of Medical and Osteopathic Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1891765475
Name
Jennifer K. May
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
5639 SD
Self-reported in NPPES; status is on the state search
Practice location
3024 Tower RD Ste 2, Rapid City, SD 57701
Phone
(605) 791-6220
Enumerated
Jan 25, 2006
Record last updated
Jun 30, 2022
Fax
(605) 721-8412
Medicare enrollment
Enrolled (PECOS I20050713000205); may accept Medicare assignment
Medical or professional school
Sanford School Of Medicine Of University Of South Dakota, 1999
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Jennifer K. May in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersSouth Dakota Board of Medical and Osteopathic Examiners
    Search for license 5639
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the South Dakota license search

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54% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,454 Medicare Part D claims for 350 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 79 claims were for opioids.

  1. Jennifer May1,454
  2. Specialty average3,176

Most prescribed

  1. Methotrexate265 claims
  2. Prednisone214 claims
  3. Hydroxychloroquine Sulfate155 claims
  4. Allopurinol115 claims
  5. Gabapentin88 claims
  6. Tramadol Hcl50 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 76.6 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score74.9
  2. Costout of 100 · 30%49.5
  3. Promoting interoperabilityout of 100 · 25%97.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $986.58

17 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jennifer May$986.58
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Jennifer K. May among 247 internal medicine physician records in South Dakota

Jennifer K. May, MD is one of 247 internal medicine physician records with a practice address in South Dakota. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.

  • NPI issued2006 · 13% of these records are older, 52% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated1999 · median 2008 among the 146 with a school on file
  • Record last updated2022 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

43 internal medicine physician records list a practice address in Rapid City

They are 43 of the 3,017 NPPES records with a practice address in Rapid City, and 247 internal medicine physician records in South Dakota.

The 8 internal medicine physician records with the nearest ZIP codes

  1. David Eaton, MDRapid City, SD 577011871548578
  2. James Engelbrecht, MDRapid City, SD 577011003886680
  3. David Evans, MDRapid City, SD 577011780639484
  4. Kenneth Hart, MDRapid City, SD 577011689609828
  5. John Herbst, MDRapid City, SD 577011922037357
  6. Dave Johnson, MDRapid City, SD 577011821038944
  7. David Klocke, MDRapid City, SD 577011487624573
  8. Sonja Labrie, MDRapid City, SD 577011295789451

Common questions

What is Jennifer K. May, MD's NPI number?

Jennifer K. May, MD's National Provider Identifier (NPI) is 1891765475, issued on Jan 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jennifer K. May, MD located?

The NPPES record lists a practice address at 3024 Tower RD Ste 2, Rapid City, SD, 57701. Phone: (605) 791-6220. Providers update this record themselves, so call before visiting.

How can I verify Jennifer K. May, MD's license?

NPPES lists South Dakota license number 5639, as entered by the provider. Search the South Dakota Board of Medical and Osteopathic Examiners at https://www.sdbmoe.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Jennifer K. May, MD prescribe under Medicare Part D?

In 2024, Jennifer K. May, MD had 1,454 Medicare Part D claims for 350 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Jennifer K. May, MD's MIPS final score?

The 2023 MIPS final score is 76.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.