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CAROL T MEI M.D.
NPI 1528041720
Internal Medicine - Hematology & Oncology in Hollister, CA

Active since November 22, 2005PECOS EnrolledAccepts Medicare Assignment
890 SUNSET DR STE A-2A, HOLLISTER, CA 95023(781) 340-0735(781) 331-6355 Get Directions Write a Review

NPPES record last updated: June 4, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Carol T Mei M.d. NPPES

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

CAROL T MEI M.D. (NPI 1528041720) is an individual hematology & oncology provider in Hollister, California, licensed in California (G70168) and active in the NPI registry since November 2005. She is enrolled in Medicare PECOS and is a graduate of Stanford University School Of Medicine (1989).

NPPES Registry Identity

NPI1528041720
Entity TypeIndividualFemale
Primary Taxonomy207RH0003X
Provider Legal NameCAROL T MEICredential: M.D.
Location Address890 SUNSET DR STE A-2AHollister, CA 95023-5651
Mailing Address10800 Magdalena RdLos Altos Hills, CA 94024-6439 · (617) 529-9092
Phone(781) 340-0735
Fax(781) 331-6355
Sole ProprietorYes
Medical School CMSStanford University School Of MedicineGraduated 1989
Enumeration DateNovember 22, 2005
Last NPPES UpdateJune 4, 2021
NPPES CertifiedJune 4, 2021
✔ NPI 1528041720 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
Licenses✔ Licensed in CA · G70168✔ Licensed in MA · 78172
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.
890 SUNSET DR STE A-2A, Hollister, CA 95023
Open in Google Maps ↗

Other Identifiers 6

OtherJ16708MA · Blue Cross Blue Shield
Other0605053MA · Aetna Us Health
Other078172MA · Tufts Health Care
Medicaid3153801MA
Other4144823MA · Cigna
Other9249MA · Harvard Pilgrim

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

Carol T Mei 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 ID3173649175
PECOS Enrollment IDI20200107001021
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 Carol Mei reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Hazel Hawkins Memorial Hospital
0.1 mi
General Acute Care Hospital
911 SUNSET DR
Hollister, CA 95023
  • Reassigned Medicare billing, California enrollment
  • 73 clinicians in this Medicare group
NPI 1275578817 (831) 637-5711

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 3

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.
118 services60 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.
99 services58 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
13 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95023 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
$207.37 typical visit price
range $70.72 – $207.37
Typical copayment $51.84 (range $17.68 – $51.84)
Most-billed visit code 99205
Established Patient
$122.36 typical visit price
range $24.01 – $170.46
Typical copayment $30.59 (range $6.00 – $42.61)
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.

MARISSA LEE FAWWAZ
Physician Assistant
890 SUNSET DR STE A-2A
HOLLISTER, CA 95023
San Benito County (831) 635-9788

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 Carol Mei's NPI number?

The NPI number for Carol Mei is 1528041720. It was assigned to this individual provider in the NPPES registry on November 22, 2005.

Where is Carol Mei located?

Carol Mei practices at 890 Sunset Dr Ste A-2a, Hollister, CA 95023. The listed phone number is (781) 340-0735.

What is Carol Mei's specialty?

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

Is Carol Mei enrolled in Medicare?

Yes. Carol Mei 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 Carol Mei's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Carol Mei reassigns Medicare benefits to Hazel Hawkins Memorial Hospital (Hollister, CA). 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 Carol Mei's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Carol Mei was last updated on June 4, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.