RONALD ARNOLD PACIS DO
NPI 1316039936
Internal Medicine - Cardiovascular Disease in Lansing, MI

Q: What is Ronald Pacis's NPI number?

The NPI number for Ronald Pacis is 1316039936. It was assigned to this individual provider in the NPPES registry on September 29, 2006.

Q: What is Ronald Pacis's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Q: When was this NPI record last updated?

The NPPES record for Ronald Pacis was last updated on July 21, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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 September 29, 2006PECOS EnrolledAccepts Medicare Assignment

1540 LAKE LANSING RD, SUITE G02, LANSING, MI 48912(517) 913-6650(517) 913-6677 Get Directions Write a Review

NPPES record last updated: July 21, 2014. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Ronald Arnold Pacis Do NPPES

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

RONALD ARNOLD PACIS DO (NPI 1316039936) is an individual cardiovascular disease provider in Lansing, Michigan, licensed in Michigan (5101015144) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with Mymichigan Medical Center Alma, and is a graduate of At Still University Of Health Sciences, College Of Osteo Med, Kirksville (2001).

NPPES Registry Identity

NPI1316039936

Entity TypeIndividualMale

Primary Taxonomy207RC0000X

Provider Legal NameRONALD ARNOLD PACISCredential: DO

Location Address1540 LAKE LANSING RD, SUITE G02Lansing, MI 48912-3756

Mailing Address1540 Lake Lansing Rd, Suite G02Lansing, MI 48912-3756 · (517) 913-6650 · Fax (517) 913-6677

Phone(517) 913-6650

Fax(517) 913-6677

Sole ProprietorNo

Medical School CMSAt Still University Of Health Sciences, College Of Osteo Med, KirksvilleGraduated 2001

Enumeration DateSeptember 29, 2006

Last NPPES UpdateJuly 21, 2014

✔ NPI 1316039936 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RC0000X

License✔ Licensed in MI · 5101015144

Definition

An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

1540 LAKE LANSING RD, Lansing, MI 48912

Open in Google Maps ↗

Other Identifiers 12

Other1027854Mclaren Health Advantage

Other200000009181MI · Php

Other7330885MI · Aetna

Medicaid4989908MI

Other9467710MI · Phcs

Other1027854MI · Mclaren Health Plan-commercial

Medicare PINM21440060MI

OtherP00399163MI · Railroad Medicare

Other0653312085MI · Bcbs

Other1027854MI · Mclaren Health Plan-medicaid

Other200000009181MI · Php Familycare

Other0M21440060MI · Medicare Advantage

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, Priority 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

Ronald Arnold Pacis Do 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 ID6002916889

PECOS Enrollment IDI20070709000407

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 Ronald Pacis reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mymichigan Medical Center Alma

38 mi

Family Medicine

820 N PINE RIVER ST
Ithaca, MI 48847

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

NPI 1679506851 (989) 875-3722

Mymichigan Medical Center Midland

62 mi

Multi-Specialty

4000 WELLNESS DR
Midland, MI 48670

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

NPI 1205889490 (844) 832-1956

Mymichigan Medical Center Clare

74 mi

General Practice

703 N MCEWAN ST
Clare, MI 48617

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

NPI 1134394026 (989) 802-5000

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 27

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.

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

988 services750 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.

315 services308 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.

112 services85 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.

76 services52 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.

70 services70 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.

70 services67 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.

68 services68 patients

Nuclear medicine studies of heart muscle at rest and with stress and spect 78452

Nuclear medicine studies of the heart involve two parts: rest and stress. During rest, images are taken of your heart at ease. During stress, images are taken after exercise or medication-induced stress. SPECT is a special imaging technique providing 3D pictures of your heart, helping identify any issues.

66 services66 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

61 services61 patients

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

43 services42 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.

43 services42 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.

42 services37 patients

Electrocardiogram (ecg) 2-day continuous with review by health care professional 93227

An Electrocardiogram (ECG) is a test that checks your heart's activity. The 2-day continuous ECG records your heart's rhythm non-stop for 48 hours. It helps to detect irregularities that may not occur during a shorter test. A healthcare professional will review the results to identify any issues.

40 services40 patients

Ultrasound of heart blood flow, valves and chambers, follow-up 93321

This procedure, an echocardiogram, uses sound waves to create images of your heart. It aids in assessing your heart's blood flow, chambers, and valves. It's a follow-up procedure, ensuring that your heart is functioning properly post-treatment.

33 services33 patients

Ultrasound of heart, follow-up 93308

A follow-up ultrasound of the heart, also known as an echocardiogram, is a non-invasive test that uses sound waves to create images of your heart. It helps doctors monitor your heart's function and structures after initial assessment or treatment.

31 services30 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

29 services29 patients

Programming of dual lead pacemaker system 93280

Programming of a dual lead pacemaker system is a procedure to adjust your heart's pacemaker settings. This process involves a small device, called a programmer, that communicates with your pacemaker to ensure it's working optimally for your heart's needs.

22 services21 patients

Electrocardiogram (ecg) up to 30 days continuous with review and report by health care professional 93228

An Electrocardiogram (ECG) is a non-invasive test that records the electrical signals in your heart. For up to 30 days, a small device will continuously monitor your heart's activity. A healthcare professional will then review the data and provide a report on your heart's function.

20 services20 patients

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

17 services17 patients

Ultrasound of heart with continuous electrocardiogram (ecg) during rest, exercise and/or drug induced stress with review and report 93351

This procedure involves using ultrasound technology to create images of your heart while you rest, exercise, or undergo drug-induced stress. An ECG continuously monitors your heart's electrical activity. It helps doctors assess heart health and function.

17 services17 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

16 services16 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.

15 services15 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.

14 services12 patients

Nuclear medicine studies of heart muscle at rest and with stress and spect 78452

13 services13 patients

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

13 services13 patients

Electrocardiogram (ecg) 2-day continuous with review by health care professional 93227

12 services12 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.

11 services11 patients

Hospital Affiliations CMS Care Compare 3

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

Mymichigan Medical Center Alma

Acute Care Hospitals · Alma, MI

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number230030

Location300 E Warwick DrAlma, MI 48801 · Gratiot County

Emergency services Birthing friendly

Mymichigan Medical Center Clare

Acute Care Hospitals · Clare, MI

4/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number230180

Location703 N Mcewan StClare, MI 48617 · Clare County

Mymichigan Medical Center Midland

Acute Care Hospitals · Midland, MI

4/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number230222

Location4000 Wellness DriveMidland, MI 48670 · Midland County

Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48912 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

$126.15 typical visit price

range $54.34 – $166.68

Typical copayment $31.53 (range $13.58 – $41.67)

Most-billed visit code 99204

Established Patient

$68.07 typical visit price

range $17.09 – $135.40

Typical copayment $17.01 (range $4.27 – $33.85)

Most-billed visit code 99213

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

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

1 supplier11 claims11 services$17.64 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

1 supplier11 claims11 services$91.17 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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. ROBERT J WOLF MD

Radiology (Diagnostic Radiology)

1540 LAKE LANSING RD, SUITE 107
LANSING, MI 48912

Ingham County (517) 913-3800

DR. HARRY JAMES MCCOY M.D.

Internal Medicine

1540 LAKE LANSING RD, STE 201
LANSING, MI 48912

Ingham County (517) 913-3900

JILL MARIE-BURTON KNOX PA

Physician Assistant

1540 LAKE LANSING RD, SUITE G02
LANSING, MI 48912

Ingham County (517) 913-6650

DR. CYNTHIA S. BOYNTON M.D.

Internal Medicine

1540 LAKE LANSING RD, STE 201
LANSING, MI 48912

Ingham County (517) 913-3900

MID-MICHIGAN PODIATRY, PC

Podiatrist (Foot & Ankle Surgery)

1540 LAKE LANSING RD, SUITE 102
LANSING, MI 48912

Ingham County (517) 913-3855

IRENE T BAKER NP

Nurse Practitioner

1540 LAKE LANSING RD, SUITE 205
LANSING, MI 48912

Ingham County (517) 913-3910

EDWARD W SPARROW HOSPITAL ASSOCIATION

Obstetrics & Gynecology

1540 LAKE LANSING RD, SUITE 205
LANSING, MI 48912

Ingham County (517) 913-3910

DR. CHAD MICHAEL GERRISH D.O.

Internal Medicine

1540 LAKE LANSING RD, SUITE 102
LANSING, MI 48912

Ingham County (517) 913-3810

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 Ronald Pacis's NPI number?

The NPI number for Ronald Pacis is 1316039936. It was assigned to this individual provider in the NPPES registry on September 29, 2006.

Where is Ronald Pacis located?

Ronald Pacis practices at 1540 Lake Lansing Rd Suite G02, Lansing, MI 48912. The listed phone number is (517) 913-6650.

What is Ronald Pacis's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Ronald Pacis enrolled in Medicare?

Yes. Ronald Pacis 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 Ronald Pacis's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ronald Pacis reassigns Medicare benefits to 3 organizations: Mymichigan Medical Center Alma (Ithaca, MI), Mymichigan Medical Center Midland (Midland, MI) and Mymichigan Medical Center Clare (Clare, 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 Ronald Pacis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ronald Pacis accept?

Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company and Priority Health list Ronald Pacis 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 Ronald Pacis affiliated with any hospitals?

According to CMS data, Ronald Pacis is affiliated with Mymichigan Medical Center Alma, Mymichigan Medical Center Clare and Mymichigan Medical Center Midland.

When was this NPI record last updated?

The NPPES record for Ronald Pacis was last updated on July 21, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.