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DR. PATRICK CHANG MD
NPI 1912009705
Family Medicine in Grand Blanc, MI

Active since September 02, 2006PECOS EnrolledAccepts Medicare Assignment
10785 S SAGINAW ST STE D, GRAND BLANC, MI 48439(810) 695-6337(810) 695-6329 Get Directions Write a Review

NPPES record last updated: December 19, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Patrick Chang Md NPPES

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

DR. PATRICK CHANG MD (NPI 1912009705) is an individual family medicine provider in Grand Blanc, Michigan, licensed in Michigan (4301063927) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1983).

NPPES Registry Identity

NPI1912009705
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameDR. PATRICK CHANGCredential: MD
Location Address10785 S SAGINAW ST STE DGrand Blanc, MI 48439-7003
Mailing Address10785 S Saginaw St Ste DGrand Blanc, MI 48439-7003 · (810) 695-6337 · Fax (810) 695-6329
Phone(810) 695-6337
Fax(810) 695-6329
Sole ProprietorNo
Medical School CMSOtherGraduated 1983
Enumeration DateSeptember 2, 2006
Last NPPES UpdateDecember 19, 2025
NPPES CertifiedDecember 19, 2025
✔ NPI 1912009705 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in MI · 4301063927
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
10785 S SAGINAW ST STE D, Grand Blanc, MI 48439
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Other Identifiers 1

Medicaid4595780MI

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

Dr. Patrick Chang 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 ID5496648784
PECOS Enrollment IDI20040202000972
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

3

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

Patrick Chang MD Family Practice LLC
Same address
Family Medicine
10785 S SAGINAW ST STE D
Grand Blanc, MI 48439
  • Reassigned Medicare billing, Michigan enrollment
NPI 1518821834 (810) 695-6337
Genesys Pho LLC
2.8 mi
Case Management
3495 S CENTER RD
Burton, MI 48519
  • Reassigned Medicare billing, Michigan enrollment
  • 66 clinicians in this Medicare group
NPI 1275820110 (810) 424-2201
Henry Ford Medical Group Genesys
2.8 mi
Family Medicine
3495 S CENTER RD
Burton, MI 48519
  • Reassigned Medicare billing, Michigan enrollment
  • 98 clinicians in this Medicare group
NPI 1598248718 (810) 424-2201

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 10

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.
192 services52 patients
Telephone medical discussion with physician, 21-30 minutes 99443
This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.
103 services36 patients
Telephone medical discussion with physician, 11-20 minutes 99442
This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.
51 services23 patients
Testing for presence of drug, read by direct observation 80305
Testing for the presence of drugs involves collecting a sample, usually urine, which is then analyzed for specific substances. The process is monitored directly to ensure accuracy and integrity. This test helps to confirm if drugs are present in your system.
44 services11 patients
Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes 99349
An established patient home visit is a medical appointment conducted at your home, typically lasting around 40 minutes. This service is ideal for patients who may find it difficult to travel to a healthcare facility. During this visit, a healthcare professional will evaluate your health status, manage your care, and answer any health-related questions you may have.
37 services14 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
31 services29 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48439 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
$84.74 typical visit price
range $54.34 – $166.68
Typical copayment $21.18 (range $13.58 – $41.67)
Most-billed visit code 99203
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

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

PATRICK CHANG MD FAMILY PRACTICE LLC
Family Medicine
10785 S SAGINAW ST STE D
GRAND BLANC, MI 48439
Genesee County (810) 695-6337

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 Patrick Chang's NPI number?

The NPI number for Patrick Chang is 1912009705. It was assigned to this individual provider in the NPPES registry on September 2, 2006.

Where is Patrick Chang located?

Patrick Chang practices at 10785 S Saginaw St Ste D, Grand Blanc, MI 48439. The listed phone number is (810) 695-6337.

What is Patrick Chang's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Patrick Chang enrolled in Medicare?

Yes. Patrick Chang 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 Patrick Chang's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Patrick Chang reassigns Medicare benefits to 3 organizations: Patrick Chang MD Family Practice LLC (Grand Blanc, MI), Genesys Pho LLC (Burton, MI) and Henry Ford Medical Group Genesys (Burton, 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 Patrick Chang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Patrick Chang accept?

Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company and Priority Health list Patrick Chang 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.

When was this NPI record last updated?

The NPPES record for Patrick Chang was last updated on December 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.