ROBERT E HILLYER MD
NPI 1760595060
Internal Medicine - Nephrology in Warren, MI

Q: What is Robert Hillyer's NPI number?

The NPI number for Robert Hillyer is 1760595060. It was assigned to this individual provider in the NPPES registry on August 17, 2006.

Q: What is Robert Hillyer's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Q: When was this NPI record last updated?

The NPPES record for Robert Hillyer was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.

Active since August 17, 2006PECOS EnrolledAccepts Medicare Assignment

11900 TWELVE MILE ROAD, SUITE 200, WARREN, MI 48093(586) 558-9033(586) 573-4209 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Robert E Hillyer Md NPPES

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

ROBERT E HILLYER MD (NPI 1760595060) is an individual nephrology provider in Warren, Michigan, licensed in Michigan (4301046767) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Ascension Providence Hospital, Southfield And Novi, and is a graduate of University Of Oklahoma College Of Medicine (1980).

NPPES Registry Identity

NPI1760595060

Entity TypeIndividualMale

Primary Taxonomy207RN0300X

Provider Legal NameROBERT E HILLYERCredential: MD

Location Address11900 TWELVE MILE ROAD, SUITE 200Warren, MI 48093

Mailing Address11900 Twelve Mile Road, Suite 200Warren, MI 48093 · (586) 558-9033 · Fax (586) 573-4209

Phone(586) 558-9033

Fax(586) 573-4209

Sole ProprietorNo

Medical School CMSUniversity Of Oklahoma College Of MedicineGraduated 1980

Enumeration DateAugust 17, 2006

Last NPPES UpdateJuly 8, 2007

✔ NPI 1760595060 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

License✔ Licensed in MI · 4301046767

Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

11900 TWELVE MILE ROAD, Warren, MI 48093

Open in Google Maps ↗

Other Identifiers 2

Medicare UPINE26604

Medicare ID-Type UnspecifiedOE06432

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 and more.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

Robert E Hillyer 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 ID7911959234

PECOS Enrollment IDI20110107000630

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 Robert Hillyer reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Metropolitan Nephrologists PC

Same address

Nephrology

11900 TWELVE MILE, SUITE 200
Warren, MI 48093

Reassigned Medicare billing, Michigan enrollment
10 clinicians in this Medicare group

NPI 1770662827 (586) 558-9033

Sciometrix LLC

7.3 mi

General Practice

306 S WASHINGTON AVE STE 600
Royal Oak, MI 48067

Reassigned Medicare billing, Michigan enrollment
97 clinicians in this Medicare group

NPI 1619649894 (860) 335-5064

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.

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.

623 services144 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.

89 services36 patients

Dialysis services, 4 or more physician visits per month (20 years or older) 90960

Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys can't do their job. This service includes 4 or more visits per month with a physician to monitor your health and adjust your treatment as needed.

75 services13 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

71 services59 patients

Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221

Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.

66 services60 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.

60 services55 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

49 services30 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.

44 services38 patients

Dialysis services, 2-3 physician visits per month (20 years or older) 90961

Dialysis is a treatment that performs the function of healthy kidneys if they're not working properly. It removes waste and excess fluid from your blood. 2-3 physician visits per month are recommended for monitoring your health and adjusting your treatment as needed. This service is available for those aged 20 years and older.

37 services17 patients

Complex chronic care management services for two or more chronic conditions, each additional 60 minutes of clinical staff time directed by health care professional, per calendar month 99489

Complex chronic care management is a service for patients with multiple chronic conditions. It involves an additional 60 minutes per month of clinical staff time directed by a healthcare professional. This service assists in managing your health conditions effectively.

26 services13 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

22 services19 patients

Complex chronic care management services for two or more chronic conditions, first 60 minutes of clinical staff time directed by health care professional, per calendar month 99487

Complex chronic care management is a service for patients with two or more long-term health conditions. It involves a healthcare professional directing clinical staff in providing care for the first 60 minutes each month. This helps manage your health conditions effectively.

18 services13 patients

Hospital Affiliations CMS Care Compare 3

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

Ascension Providence Hospital, Southfield And Novi

Acute Care Hospitals · Southfield, MI

3/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number230019

Location16001 W Nine Mile RdSouthfield, MI 48075 · Oakland County

Emergency services Birthing friendly

Ascension St John Hospital

Acute Care Hospitals · Detroit, MI

2/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number230165

Location22101 Moross RdDetroit, MI 48236 · Wayne County

Emergency services Birthing friendly

Huron Valley-Sinai Hospital

Acute Care Hospitals · Commerce Township, MI

3/5 CMS rating

OwnershipProprietary

CMS Certification Number230277

LocationOne William Carls DriveCommerce Township, MI 48382 · Oakland County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48093 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

$134.28 typical visit price

range $58.04 – $177.36

Typical copayment $33.57 (range $14.51 – $44.34)

Most-billed visit code 99204

Established Patient

$102.35 typical visit price

range $18.32 – $143.49

Typical copayment $25.58 (range $4.58 – $35.87)

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 4

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

SREELATHA PENUMALEE MD

Internal Medicine (Nephrology)

11900 TWELVE MILE ROAD, SUITE 200
WARREN, MI 48093

Macomb County (586) 558-9033

DR. VED P SINGLA MD

Internal Medicine

11900 TWELVE MILE ROAD, SUITE 204
WARREN, MI 48093

Macomb County (586) 751-0280

RAMA KRISHNA ALAVALAPATI MD

Internal Medicine (Nephrology)

11900 TWELVE MILE ROAD, SUITE 200
WARREN, MI 48093

Macomb County (586) 558-9033

JAMES E LAWSON DO

Internal Medicine

11900 TWELVE MILE ROAD, SUITE 200
WARREN, MI 48093

Macomb County (586) 558-9033

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 Robert Hillyer's NPI number?

The NPI number for Robert Hillyer is 1760595060. It was assigned to this individual provider in the NPPES registry on August 17, 2006.

Where is Robert Hillyer located?

Robert Hillyer practices at 11900 Twelve Mile Road Suite 200, Warren, MI 48093. The listed phone number is (586) 558-9033.

What is Robert Hillyer's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Robert Hillyer enrolled in Medicare?

Yes. Robert Hillyer 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 Robert Hillyer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Robert Hillyer reassigns Medicare benefits to 2 organizations: Metropolitan Nephrologists PC (Warren, MI) and Sciometrix LLC (Royal Oak, MI). 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 Robert Hillyer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Robert Hillyer accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 1 other insurer list Robert Hillyer 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 Robert Hillyer affiliated with any hospitals?

According to CMS data, Robert Hillyer is affiliated with Ascension Providence Hospital, Southfield And Novi, Ascension St John Hospital and Huron Valley-Sinai Hospital.

When was this NPI record last updated?

The NPPES record for Robert Hillyer was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.