Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. ADAM MAURICE MAY MD
NPI 1407110307
Internal Medicine - Critical Care Medicine in Saint Louis, MO

Q: What is Adam May's NPI number?

The NPI number for Adam May is 1407110307. It was assigned to this individual provider in the NPPES registry on June 26, 2012.

Q: What is Adam May's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Q: When was this NPI record last updated?

The NPPES record for Adam May was last updated on August 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 59 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since June 26, 2012PECOS EnrolledAccepts Medicare Assignment

1 BARNES JEWISH HOSPITAL PLZ, DIV IM CARDIOLOGY, SAINT LOUIS, MO 63110(314) 362-1291(314) 362-4278 Get Directions Write a Review

NPPES record last updated: August 25, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 25, 2026, Apr 25, 2024, Apr 10, 2024 and 5 more (8 updates tracked since 2017).

On this page

About Dr. Adam Maurice May Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ADAM MAURICE MAY MD (NPI 1407110307) is an individual critical care medicine provider in Saint Louis, Missouri, licensed in Missouri (2019020022) and active in the NPI registry since June 2012. He is enrolled in Medicare PECOS, is affiliated with Barnes Jewish Hospital, and is a graduate of Loyola University Of Chicago, Stritch School Of Medicine (2012).

NPPES Registry Identity

NPI1407110307

Entity TypeIndividualMale

Primary Taxonomy207RC0200X

Provider Legal NameDR. ADAM MAURICE MAYCredential: MD

Location Address1 BARNES JEWISH HOSPITAL PLZ, DIV IM CARDIOLOGYSaint Louis, MO 63110-1003

Mailing AddressPo Box 7412011Chicago, IL 60674-2011 · (314) 362-1291 · Fax (314) 362-4278

Phone(314) 362-1291

Fax(314) 362-4278

Sole ProprietorNo

Medical School CMSLoyola University Of Chicago, Stritch School Of MedicineGraduated 2012

Enumeration DateJune 26, 2012

Last NPPES UpdateAugust 25, 20268 updates tracked since enumeration

✔ NPI 1407110307 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RC0200X

License✔ Licensed in MO · 2019020022

Definition

An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

Also ListedAnesthesiology · Critical Care MedicineTaxonomy 207LC0200X · License 2019020022 (MO)

Also ListedInternal MedicineTaxonomy 207R00000X · License 2019020022 (MO)

Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X · License 2019020022 (MO)

1 BARNES JEWISH HOSPITAL PLZ, Saint Louis, MO 63110

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Other Identifiers 1

Medicaid200075648MO

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Adam Maurice May Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6608012463

PECOS Enrollment IDI20190821001008

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Adam May reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Heart Care Institute Affiliated Services, LLC

5.0 mi

Rehabilitation, Cardiac Facilities

1020 N MASON RD, SUITE 200
Creve Coeur, MO 63141

Reassigned Medicare billing, Missouri enrollment
Also billed through NPI 1063756278 (Missouri)
29 clinicians in this Medicare group

NPI 1144256785 (314) 996-3140

Heart Care Institute LLC

5.0 mi

Rehabilitation, Cardiac Facilities

1020 N MASON RD, SUITE 210
Creve Coeur, MO 63141

Reassigned Medicare billing, Missouri enrollment
45 clinicians in this Medicare group

NPI 1881975308 (314) 996-3162

Washington University

6.4 mi

Multi-Specialty

660 S EUCLID AVE
Saint Louis, MO 63110

Reassigned Medicare billing, Missouri enrollment
Also billed through NPI 1528005642 (Missouri)
1,133 clinicians in this Medicare group

NPI 1992746903 (314) 747-5192

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 12

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

190 services52 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.

56 services56 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

37 services28 patients

Ultrasound of heart with probe in esophagus, with report 93312

This procedure, called a transesophageal echocardiogram, uses a small probe passed into your esophagus to capture detailed images of your heart. The report provides information about your heart's structure and function.

35 services35 patients

Ultrasound of heart blood flow, valves and chambers 93320

An ultrasound of your heart, also known as an echocardiogram, is a test that uses sound waves to create detailed images of your heart. It helps doctors check the health of your heart's chambers, valves, and blood flow.

33 services33 patients

Ultrasound of heart with color-depicted blood flow, rate and valve function 93325

An ultrasound of the heart, also known as an echocardiogram, uses sound waves to create pictures of your heart. It shows the structure, movement, and blood flow within your heart. This helps assess the heart's health and function, including the valves and rate.

33 services33 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

25 services25 patients

Critical care, first 30-74 minutes 99291

21 services20 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

19 services11 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician 93018

An exercise or drug-induced heart stress test with ECG is a procedure to assess how your heart functions under stress. It can involve exercising or medication to make your heart work harder while an ECG records its activity. A physician reviews the results.

17 services17 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician 93016

An exercise or drug-induced heart stress test with ECG involves monitoring your heart's activity while it's under stress, either from exercise or medication. A doctor supervises the entire procedure to ensure safety and accuracy in results. This test helps detect heart problems.

14 services14 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

14 services14 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Barnes Jewish Hospital

Acute Care Hospitals · Saint Louis, MO

4/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number260032

LocationOne Barnes-Jewish Hospital PlazaSaint Louis, MO 63110 · St. Louis City County

Emergency services Birthing friendly

Barnes-Jewish West County Hospital

Acute Care Hospitals · Creve Coeur, MO

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number260162

Location12634 Olive BoulevardCreve Coeur, MO 63141 · St. Louis County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63110 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$128.28 typical visit price

range $55.65 – $169.38

Typical copayment $32.07 (range $13.91 – $42.34)

Most-billed visit code 99204

Established Patient

$98.37 typical visit price

range $17.76 – $137.92

Typical copayment $24.59 (range $4.44 – $34.48)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. MARGARET LEIGHTON MCNAIRY MD

Hospitalist

1 BARNES JEWISH HOSPITAL PLZ, DIV IM HOSPITALIST
SAINT LOUIS, MO 63110

St. Louis City (314) 362-1700

MS. CHERYL ANNE WOOLSEY PA

Physician Assistant

1 BARNES JEWISH HOSPITAL PLZ, DIV IM MEDICAL ONCOLOGY
SAINT LOUIS, MO 63110

St. Louis City (314) 747-1171

ANNA RABINOV ANNA RABINOV

Obstetrics & Gynecology

1 BARNES JEWISH HOSPITAL PLZ
SAINT LOUIS, MO 63110

St. Louis City (314) 747-3000

MRS. MICHELLE MARIE BLOOM ACNP

Nurse Practitioner (Acute Care)

1 BARNES JEWISH HOSPITAL PLZ, DEPT ANESTHESIOLOGY
SAINT LOUIS, MO 63110

St. Louis City (800) 862-9980

DR. FARIS ADAM BAKEER MD

Hospitalist

1 BARNES JEWISH HOSPITAL PLZ, DIV IM HOSPITALIST
SAINT LOUIS, MO 63110

St. Louis City (314) 362-1700

DR. REHAN RAIS MD

Hospitalist

1 BARNES JEWISH HOSPITAL PLZ, DIV IM HOSPITALIST
SAINT LOUIS, MO 63110

St. Louis City (314) 362-1700

DR. RANDY OLIVIER LAINE MD

Hospitalist

1 BARNES JEWISH HOSPITAL PLZ, DIV IM HOSPITALIST
SAINT LOUIS, MO 63110

St. Louis City (314) 362-1700

DR. BRADLEY SETH KUSHNER MD

Surgery

1 BARNES JEWISH HOSPITAL PLZ, DIV SURG VASCULAR
SAINT LOUIS, MO 63110

St. Louis City (314) 273-7373

MS. KELSEY ELISE FOGUS CRNA

Nurse Anesthetist, Certified Registered

1 BARNES JEWISH HOSPITAL PLZ, DEPT ANESTHESIOLOGY
SAINT LOUIS, MO 63110

St. Louis City (800) 862-9980

DR. YAMAN GHASSAN MKHAIMER MD

Hospitalist

1 BARNES JEWISH HOSPITAL PLZ, DIV IM HOSPITALIST
SAINT LOUIS, MO 63110

St. Louis City (314) 362-1700

MS. CLAIRA J SOUSA CRNA

Nurse Anesthetist, Certified Registered

1 BARNES JEWISH HOSPITAL PLZ, DEPT ANESTHESIOLOGY
SAINT LOUIS, MO 63110

St. Louis City (800) 862-9980

ADRIENNE VIRGINIA VISANI

Student in an Organized Health Care Education/Training Program

1 BARNES JEWISH HOSPITAL PLZ
SAINT LOUIS, MO 63110

St. Louis City (314) 747-3000

ALEX RICHARD MD

Student in an Organized Health Care Education/Training Program

1 BARNES JEWISH HOSPITAL PLZ
SAINT LOUIS, MO 63110

St. Louis City (314) 747-3000

DIVYA SHARMA DIVYADARSHINI MD

Internal Medicine (Nephrology)

1 BARNES JEWISH HOSPITAL PLZ
SAINT LOUIS, MO 63110

St. Louis City (314) 362-9096

CHRISTINA EDDINS MOTR/L

Occupational Therapist

1 BARNES JEWISH HOSPITAL PLZ
SAINT LOUIS, MO 63110

St. Louis City (314) 747-3000

ARIANNA ROTH BARNES

Clinical Nurse Specialist (Critical Care Medicine)

1 BARNES JEWISH HOSPITAL PLZ
SAINT LOUIS, MO 63110

St. Louis City (314) 400-0606

RACHEL SMIGELSKI-THEISS MSN, RN, ACCNS-AG

Clinical Nurse Specialist (Medical-Surgical)

1 BARNES JEWISH HOSPITAL PLZ
SAINT LOUIS, MO 63110

St. Louis City (314) 738-1457

DR. NGUYET M NGUYEN MD

Internal Medicine (Pulmonary Disease)

1 BARNES JEWISH HOSPITAL PLZ, DEPT INTERNAL MEDICINE
SAINT LOUIS, MO 63110

St. Louis City (314) 747-3000

MR. AARON M WEINZETTEL CRNA

Nurse Anesthetist, Certified Registered

1 BARNES JEWISH HOSPITAL PLZ, DEPT ANESTHESIOLOGY
SAINT LOUIS, MO 63110

St. Louis City (800) 862-9980

DR. VORACHART AUETHAVEKIAT MD

Internal Medicine (Hematology)

1 BARNES JEWISH HOSPITAL PLZ, DIV IM HEMATOLOGY
SAINT LOUIS, MO 63110

St. Louis City (314) 362-7216

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Adam May's NPI number?

The NPI number for Adam May is 1407110307. It was assigned to this individual provider in the NPPES registry on June 26, 2012.

Where is Adam May located?

Adam May practices at 1 Barnes Jewish Hospital Plz Div Im Cardiology, Saint Louis, MO 63110. The listed phone number is (314) 362-1291.

What is Adam May's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Is Adam May enrolled in Medicare?

Yes. Adam May is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Adam May's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Adam May reassigns Medicare benefits to 3 organizations: Heart Care Institute Affiliated Services, LLC (Creve Coeur, MO), Heart Care Institute LLC (Creve Coeur, MO) and Washington University (Saint Louis, MO). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Adam May's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Adam May affiliated with any hospitals?

According to CMS data, Adam May is affiliated with Barnes Jewish Hospital and Barnes-Jewish West County Hospital.

When was this NPI record last updated?

The NPPES record for Adam May was last updated on August 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 59 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.