DANIEL ISAAC D.O.
NPI 1326486416
Internal Medicine - Hematology & Oncology in Grand Rapids, MI

Active since June 11, 2013PECOS EnrolledAccepts Medicare Assignment
145 MICHIGAN ST NE STE 2200, GRAND RAPIDS, MI 49503(616) 486-5933 Get Directions Write a Review

NPPES record last updated: March 12, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Mar 12, 2026, Jul 24, 2024, Jul 7, 2023 and 4 more (7 updates tracked since 2016).

About Daniel Isaac D.o. NPPES

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

DANIEL ISAAC D.O. (NPI 1326486416) is an individual hematology & oncology provider in Grand Rapids, Michigan, licensed in Michigan (5101020392) and active in the NPI registry since June 2013. He is enrolled in Medicare PECOS, is affiliated with Mclaren Flint, and maintains a secondary practice location in Lansing.

NPPES Registry Identity

NPI1326486416
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameDANIEL ISAACCredential: D.O.
Location Address145 MICHIGAN ST NE STE 2200Grand Rapids, MI 49503-2562
Mailing Address804 Service Rd Ste A202East Lansing, MI 48824-7015 · (517) 975-9500 · Fax (517) 975-9520
Sole ProprietorNo
Medical School CMSOtherGraduated 2013
Enumeration DateJune 11, 2013
Last NPPES UpdateMarch 12, 20267 updates tracked since enumeration
NPPES CertifiedMarch 12, 2026
NPI 1326486416 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License Licensed in MI · 5101020392
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
Also ListedInternal MedicineTaxonomy 207R00000X · License 5101020392 (MI)
145 MICHIGAN ST NE STE 2200, Grand Rapids, MI 49503

Secondary Practice Location 1

Location 13520 Forest RdLansing, MI 48910-3720 · Phone (517) 975-9500 · Fax (517) 975-9520

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Daniel Isaac D.o. 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 ID4688805146
PECOS Enrollment IDI20190717000202
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.

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.
204 services86 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.
117 services89 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.
18 services18 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.
12 services12 patients

Hospital Affiliations CMS Care Compare 3

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

Mclaren Flint

Acute Care Hospitals · Flint, MI
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230141
Location401 S Ballenger HighwayFlint, MI 48532 · Genesee County
Emergency services Birthing friendly

Mclaren Greater Lansing

Acute Care Hospitals · Lansing, MI
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230167
Location2900 Collins RdLansing, MI 48910 · Ingham County
Emergency services Birthing friendly

Edward W Sparrow Hospital

Acute Care Hospitals · Lansing, MI
2/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number230230
Location1215 E Michigan AvenueLansing, MI 48912 · Ingham County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 49503 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
$166.68 typical visit price
range $54.34 – $166.68
Typical copayment $41.67 (range $13.58 – $41.67)
Most-billed visit code 99205
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.

Referred Medical Equipment & Supplies CMS DME claims

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

Injection, immune globulin (hizentra), 100 mg J1559
Treatment-Injections and Infusions (nononcologic) · category RI008N
1 supplier25 claims7,800 services$9.51 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.

Internal Medicine (Hematology & Oncology)
145 MICHIGAN ST NE STE 2200
GRAND RAPIDS, MI 49503
Physician Assistant
145 MICHIGAN ST NE STE 2200
GRAND RAPIDS, MI 49503
Internal Medicine (Medical Oncology)
145 MICHIGAN ST NE STE 2200
GRAND RAPIDS, MI 49503
Internal Medicine (Hematology)
145 MICHIGAN ST NE STE 2200
GRAND RAPIDS, MI 49503
Radiology (Radiation Oncology)
145 MICHIGAN ST NE STE 2200
GRAND RAPIDS, MI 49503
Internal Medicine
145 MICHIGAN ST NE STE 2200
GRAND RAPIDS, MI 49503
Nurse Practitioner (Family)
145 MICHIGAN ST NE STE 2200
GRAND RAPIDS, MI 49503
Nurse Practitioner (Family)
145 MICHIGAN ST NE STE 2200
GRAND RAPIDS, MI 49503

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 Daniel Isaac's NPI number?

The NPI number for Daniel Isaac is 1326486416. It was assigned to this individual provider in the NPPES registry on June 11, 2013.

Where is Daniel Isaac located?

Daniel Isaac practices at 145 Michigan St NE Ste 2200, Grand Rapids, MI 49503. The listed phone number is (616) 486-5933.

What is Daniel Isaac's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Daniel Isaac enrolled in Medicare?

Yes. Daniel Isaac 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.

What insurance does Daniel Isaac 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 2 other insurers list Daniel Isaac 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 Daniel Isaac affiliated with any hospitals?

According to CMS data, Daniel Isaac is affiliated with Mclaren Flint, Mclaren Greater Lansing and Edward W Sparrow Hospital.

When was this NPI record last updated?

The NPPES record for Daniel Isaac was last updated on March 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.