CARLOS DIOLA M.D.
NPI 1225022387
Internal Medicine - Rheumatology in Midland, MI

Q: What is Carlos Diola's NPI number?

The NPI number for Carlos Diola is 1225022387. It was assigned to this individual provider in the NPPES registry on September 6, 2005.

Q: What is Carlos Diola's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Q: When was this NPI record last updated?

The NPPES record for Carlos Diola was last updated on August 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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 06, 2005PECOS EnrolledAccepts Medicare Assignment

4401 N CAMPUS RIDGE DR, STE C2100, MIDLAND, MI 48640(989) 837-9033(989) 837-9030 Get Directions Write a Review

NPPES record last updated: August 4, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Carlos Diola M.d. NPPES

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

CARLOS DIOLA M.D. (NPI 1225022387) is an individual rheumatology provider in Midland, Michigan, licensed in Michigan (4301077266) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS, is affiliated with Mymichigan Medical Center Alpena, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1225022387

Entity TypeIndividualMale

Primary Taxonomy207RR0500X

Provider Legal NameCARLOS DIOLACredential: M.D.

Location Address4401 N CAMPUS RIDGE DR, STE C2100Midland, MI 48640-6112

Mailing Address4000 Wellness DrMidland, MI 48670-2000

Phone(989) 837-9033

Fax(989) 837-9030

Sole ProprietorYes

Medical School CMSOtherGraduated 1987

Enumeration DateSeptember 6, 2005

Last NPPES UpdateAugust 4, 2025

NPPES CertifiedAugust 4, 2025

✔ NPI 1225022387 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians

Taxonomy Code207RR0500X

License✔ Licensed in MI · 4301077266

Definition

An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.

4401 N CAMPUS RIDGE DR, Midland, MI 48640

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Secondary Practice Locations 2

Location 15694 Midland RdFreeland, MI 48623-8845 · Phone (989) 837-9033

Location 24851 E Pickard St Ste 2400Mount Pleasant, MI 48858-2042 · Phone (989) 837-9033

Other Identifiers 1

Medicaid4568334MI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include 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

Carlos Diola M.d. 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 ID2264330976

PECOS Enrollment IDI20031219000331

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 Carlos Diola reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mymichigan Medical Center Midland

0.2 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

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 4

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.

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.

207 services159 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.

195 services155 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.

61 services61 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

22 services22 patients

Hospital Affiliations CMS Care Compare 5

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

Mymichigan Medical Center Alpena

Acute Care Hospitals · Alpena, MI

5/5 CMS rating

OwnershipProprietary

CMS Certification Number230036

Location1501 W Chisholm StAlpena, MI 49707 · Alpena County

Emergency services Birthing friendly

Covenant Medical Center

Acute Care Hospitals · Saginaw, MI

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number230070

Location1447 N HarrisonSaginaw, MI 48602 · Saginaw County

Emergency services Birthing friendly

Ascension St Mary's Hospital

Acute Care Hospitals · Saginaw, MI

2/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number230077

Location800 S Washington AvenueSaginaw, MI 48601 · Saginaw County

Emergency services

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

Mymichigan Medical Center Gladwin

Critical Access Hospitals · Gladwin, MI

OwnershipVoluntary non-profit - Private

CMS Certification Number231325

Location515 Quarter StreetGladwin, MI 48624 · Gladwin County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48640 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

$96.44 typical visit price

range $17.09 – $135.40

Typical copayment $24.11 (range $4.27 – $33.85)

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.

ANN E DULL PT

Physical Therapist

4401 N CAMPUS RIDGE DR, C2000
MIDLAND, MI 48640

Midland County (989) 837-9130

SHEREE CLARK M.D.

Family Medicine

4401 N CAMPUS RIDGE DR, SUITE 2100
MIDLAND, MI 48640

Midland County (989) 837-9300

MONICA DHAR M.D.

Pediatrics

4401 N CAMPUS RIDGE DR, SUITE D2400
MIDLAND, MI 48640

Midland County (989) 837-9250

DR. MICHAEL J MISCHLEY PH.D.

Psychologist (Clinical)

4401 N CAMPUS RIDGE DR, SUITE C2000
MIDLAND, MI 48640

Midland County (989) 941-1112

JOHN C HOUGH MD

Family Medicine

4401 N CAMPUS RIDGE DR, SUITE C2100
MIDLAND, MI 48640

Midland County (989) 837-9200

MARY ELIZABETH GERALDINE WHEELDON NP-C

Nurse Practitioner

4401 N CAMPUS RIDGE DR, STE 2450
MIDLAND, MI 48640

Midland County (989) 839-1386

CARL LOVELL MD

Family Medicine

4401 N CAMPUS RIDGE DR, SUITE D2100
MIDLAND, MI 48640

Midland County (989) 837-9300

DR. SANDEEP SAMBRANI RAO M.D.

Obstetrics & Gynecology (Obstetrics)

4401 N CAMPUS RIDGE DR, #B2200
MIDLAND, MI 48640

Midland County (989) 837-9400

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 Carlos Diola's NPI number?

The NPI number for Carlos Diola is 1225022387. It was assigned to this individual provider in the NPPES registry on September 6, 2005.

Where is Carlos Diola located?

Carlos Diola practices at 4401 N Campus Ridge Dr Ste C2100, Midland, MI 48640. The listed phone number is (989) 837-9033.

What is Carlos Diola's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Carlos Diola enrolled in Medicare?

Yes. Carlos Diola 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 Carlos Diola's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Carlos Diola reassigns Medicare benefits to Mymichigan Medical Center Midland (Midland, 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 Carlos Diola's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Carlos Diola accept?

Health plans from Priority Health list Carlos Diola 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 Carlos Diola affiliated with any hospitals?

According to CMS data, Carlos Diola is affiliated with Mymichigan Medical Center Alpena, Covenant Medical Center, Ascension St Mary's Hospital, Mymichigan Medical Center Midland and Mymichigan Medical Center Gladwin.

When was this NPI record last updated?

The NPPES record for Carlos Diola was last updated on August 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.