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ELYSSA KAYSER MD
NPI 1477179935
Internal Medicine in Ypsilanti, MI

Active since June 22, 2020PECOS EnrolledAccepts Medicare Assignment
IHA HOSPITAL MEDICINE SERVICES, 5301 E HURON RIVER DRIVE, YPSILANTI, MI 78197(734) 712-8676 Get Directions Write a Review

NPPES record last updated: July 31, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Elyssa Kayser Md NPPES

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

ELYSSA KAYSER MD (NPI 1477179935) is an individual internal medicine provider in Ypsilanti, Michigan, licensed in Michigan (4301509834) and active in the NPI registry since June 2020. She is enrolled in Medicare PECOS, is affiliated with Saint Joseph Mercy Livingston Hospital, and is a graduate of Toledo Medical College (2020).

NPPES Registry Identity

NPI1477179935
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameELYSSA KAYSERCredential: MD
Location AddressIHA HOSPITAL MEDICINE SERVICES, 5301 E HURON RIVER DRIVEYpsilanti, MI 78197
Mailing Address24 Frank Lloyd Wright Drive, Suite J2000Ann Arbor, MI 48105 · (734) 747-6766
Phone(734) 712-8676
Sole ProprietorNo
Medical School CMSToledo Medical CollegeGraduated 2020
Enumeration DateJune 22, 2020
Last NPPES UpdateJuly 31, 2023
NPPES CertifiedJuly 31, 2023
✔ NPI 1477179935 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MI · 4301509834
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
IHA HOSPITAL MEDICINE SERVICES, Ypsilanti, MI 78197
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health.Insurance ›

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

Elyssa Kayser 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 ID7618390386
PECOS Enrollment IDI20230721000453
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 Reassignment

Medicare enrollment records show Elyssa Kayser reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Iha Health Services Corporation
0.9 mi
Surgical Critical Care
5301 E. HURON RIVER DR.
Ypsilanti, MI 48197
  • Reassigned Medicare billing, Michigan enrollment
  • 1,480 clinicians in this Medicare group
NPI 1235659574 (734) 712-7017

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 5

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.

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.
357 services147 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
96 services96 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.
40 services37 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.
38 services38 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
21 services21 patients

Hospital Affiliations CMS Care Compare 2

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

Saint Joseph Mercy Livingston Hospital

Acute Care Hospitals · Howell, MI
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number230069
Location620 Byron RdHowell, MI 48843 · Livingston County
Emergency services

Trinity Health Ann Arbor Hospital

Acute Care Hospitals · Ann Arbor, MI
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number230156
Location5301 E Huron River DrAnn Arbor, MI 48106 · Washtenaw County
Emergency services Birthing friendly

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 Elyssa Kayser's NPI number?

The NPI number for Elyssa Kayser is 1477179935. It was assigned to this individual provider in the NPPES registry on June 22, 2020.

Where is Elyssa Kayser located?

Elyssa Kayser practices at Iha Hospital Medicine Services 5301 E Huron River Drive, Ypsilanti, MI 78197. The listed phone number is (734) 712-8676.

What is Elyssa Kayser's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Elyssa Kayser enrolled in Medicare?

Yes. Elyssa Kayser 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 organization bills Medicare for Elyssa Kayser's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Elyssa Kayser reassigns Medicare benefits to Iha Health Services Corporation (Ypsilanti, MI). The 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 Elyssa Kayser's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Elyssa Kayser accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan and Ambetter from Meridian list Elyssa Kayser as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Elyssa Kayser affiliated with any hospitals?

According to CMS data, Elyssa Kayser is affiliated with Saint Joseph Mercy Livingston Hospital and Trinity Health Ann Arbor Hospital.

When was this NPI record last updated?

The NPPES record for Elyssa Kayser was last updated on July 31, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.