DR. GRIGORI OKOEV M.D.
NPI 1346635679
Internal Medicine - Hematology & Oncology in York, PA

Active since April 02, 2015PECOS EnrolledAccepts Medicare Assignment
25 MONUMENT RD STE 294, YORK, PA 17403(717) 741-9229(717) 741-9605 Get Directions Write a Review

NPPES record last updated: April 21, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Apr 21, 2026, Feb 15, 2023, Jun 19, 2021 (3 updates tracked since 2021).

About Dr. Grigori Okoev M.d. NPPES

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

DR. GRIGORI OKOEV M.D. (NPI 1346635679) is an individual hematology & oncology provider in York, Pennsylvania, licensed in Pennsylvania (MD479403) and active in the NPI registry since April 2015. He is enrolled in Medicare PECOS, is affiliated with Wellspan York Hospital, and maintains a secondary practice location in Rosedale.

NPPES Registry Identity

NPI1346635679
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameDR. GRIGORI OKOEVCredential: M.D.
Location Address25 MONUMENT RD STE 294York, PA 17403-5049
Mailing Address601 Memory LnYork, PA 17402-2231 · (717) 851-1405
Fax(717) 741-9605
Sole ProprietorYes
Medical School CMSUniversity Of Minnesota Medical SchoolGraduated 2021
Enumeration DateApril 2, 2015
Last NPPES UpdateApril 21, 20263 updates tracked since enumeration
NPPES CertifiedApril 21, 2026
NPI 1346635679 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
Licenses Licensed in PA · MD479403 Licensed in MD · D0091105
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 D0091105 (MD)
25 MONUMENT RD STE 294, York, PA 17403

Secondary Practice Location 1

Location 19103 Franklin Square DrRosedale, MD 21237-3900 · Phone (443) 777-7147

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

Dr. Grigori Okoev 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 ID5395093645
PECOS Enrollment IDI20221129000603
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 71

Services this provider delivered to Medicare fee-for-service patients, from the 2024 & 2026 CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Injection, darbepoetin alfa, 1 microgram (non-esrd use) J0881
Darbepoetin alfa injection is a medication used to treat anemia (low red blood cell count) often caused by chronic kidney disease or chemotherapy. It works by stimulating your body to produce more red blood cells, helping to increase your energy and well-being.
22,530 services46 patients
Injection, azacitidine, 1 mg J9025
Azacitidine is a medication administered via injection to treat certain types of blood or bone marrow cancer. This drug works by slowing or stopping the growth of cancer cells. It's typically given in a clinic or hospital setting by a healthcare professional.
11,600 services11 patients
Injection, pembrolizumab, 1 mg J9271
Pembrolizumab is a medication given via injection to help your body's immune system fight certain types of cancer. It's typically administered in a hospital or clinic by a healthcare professional.
11,600 services31 patients
Injection, daratumumab, 10 mg and hyaluronidase-fihj J9144
Daratumumab and hyaluronidase-fihj is an injection administered to treat certain types of blood cancer. The medication works by targeting and killing specific cancer cells. It's often given under the skin to reduce side effects and improve patient comfort.
11,340 services33 patients
Injection, nivolumab, 1 mg J9299
Nivolumab is a medication given via injection, often used in cancer treatment. It works by helping your immune system fight the cancer cells. The dosage is measured in milligrams (mg), with 1 mg being a common dose.
10,000 services14 patients
Injection, denosumab, 1 mg J0897
Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.
9,060 services69 patients

Hospital Affiliations CMS Care Compare 2

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

Wellspan York Hospital

Acute Care Hospitals · York, PA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390046
Location1001 South George StreetYork, PA 17403 · York County
Emergency services Birthing friendly

Gettysburg Hospital

Acute Care Hospitals · Gettysburg, PA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390065
Location147 Gettys StreetGettysburg, PA 17325 · Adams County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 17403 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
$166.87 typical visit price
range $54.64 – $166.87
Typical copayment $41.71 (range $13.66 – $41.71)
Most-billed visit code 99205
Established Patient
$96.82 typical visit price
range $17.33 – $135.84
Typical copayment $24.20 (range $4.33 – $33.96)
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 15

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

Nurse Practitioner (Family)
25 MONUMENT RD STE 294
YORK, PA 17403
Internal Medicine (Medical Oncology)
25 MONUMENT RD STE 294
YORK, PA 17403
Internal Medicine (Hematology & Oncology)
25 MONUMENT RD STE 294
YORK, PA 17403
Nurse Practitioner
25 MONUMENT RD STE 294
YORK, PA 17403
Internal Medicine (Hematology & Oncology)
25 MONUMENT RD STE 294
YORK, PA 17403
Physician Assistant
25 MONUMENT RD STE 294
YORK, PA 17403
Internal Medicine (Hematology & Oncology)
25 MONUMENT RD STE 294
YORK, PA 17403
Pharmacist (Pharmacotherapy)
25 MONUMENT RD STE 294
YORK, PA 17403

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1346635679, enumerated as an "individual" on April 02, 2015.

The provider is located at 25 MONUMENT RD STE 294 YORK, PA 17403 and the phone number is (717) 741-9229.

Internal Medicine with taxonomy code 207RH0003X and a focus in Hematology & Oncology.

The provider might be accepting Accepts: Ambetter from Buckeye Health Plan, Ambetter Health. Please consult your insurance carrier or call the provider to verify.

Grigori Okoev is affiliated with: WELLSPAN YORK HOSPITAL and GETTYSBURG HOSPITAL.