DR. CARLOS F ZAYAS MD
NPI 1205979564
Internal Medicine - Nephrology in Greenville, SC

Active since February 15, 2007PECOS EnrolledAccepts Medicare Assignment
203 MILLS AVE # 9159, GREENVILLE, SC 29605(864) 271-1844(864) 271-2147 Get Directions Write a Review

NPPES record last updated: May 22, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 22, 2023, Dec 6, 2022, Mar 18, 2020 and 1 more (4 updates tracked since 2019).

About Dr. Carlos F Zayas Md NPPES

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

DR. CARLOS F ZAYAS MD (NPI 1205979564) is an individual nephrology provider in Greenville, South Carolina, licensed in South Carolina (36699) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS, is affiliated with Prisma Health Oconee Memorial Hospital, and maintains a secondary practice location in Charleston.

NPPES Registry Identity

NPI1205979564
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameDR. CARLOS F ZAYASCredential: MD
Location Address203 MILLS AVE # 9159Greenville, SC 29605-4019
Mailing Address300 E Mcbee Ave Fl 4Greenville, SC 29601-2842
Fax(864) 271-2147
Sole ProprietorNo
Medical School CMSUniversity Of Puerto Rico School Of MedicineGraduated 1990
Enumeration DateFebruary 15, 2007
Last NPPES UpdateMay 22, 20234 updates tracked since enumeration
NPPES CertifiedMay 22, 2023
NPI 1205979564 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License Licensed in SC · 36699
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
Also ListedTransplant SurgeryTaxonomy 204F00000X · License 036668 (GA), 36699 (SC)
203 MILLS AVE # 9159, Greenville, SC 29605

Other Names 1

Other Name (5)Dr. Carlos F Zayas-montalvo Md

Secondary Practice Location 1

Location 1171 Ashley AveCharleston, SC 29425-6476 · Phone (843) 792-1414

Other Identifiers 1

MedicaidPENDINGSC

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. Carlos F Zayas 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 ID3870528391
PECOS Enrollment IDI20160205000029
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 5

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.
440 services119 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
292 services60 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
80 services24 patients
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.
58 services19 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
43 services37 patients

Hospital Affiliations CMS Care Compare 5

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

Prisma Health Oconee Memorial Hospital

Acute Care Hospitals · Seneca, SC
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number420009
Location298 Memorial DrSeneca, SC 29672 · Oconee County
Emergency services Birthing friendly

Anmed Health

Acute Care Hospitals · Anderson, SC
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number420027
Location800 N Fant StAnderson, SC 29621 · Anderson County
Emergency services Birthing friendly

Prisma Health Greer Memorial Hospital

Acute Care Hospitals · Spartanburg, SC
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number420033
Location1413 John B White Sr Blvd Suite DSpartanburg, SC 29306 · Spartanburg County
Emergency services Birthing friendly

Prisma Health Hillcrest Hospital

Acute Care Hospitals · Simpsonville, SC
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number420037
Location741 South East Main StreetSimpsonville, SC 29681 · Greenville County
Emergency services

Prisma Health Greenville Memorial Hospital

Acute Care Hospitals · Greenville, SC
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number420078
Location701 Grove RoadGreenville, SC 29605 · Greenville County
Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 29605 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
$124.04 typical visit price
range $53.57 – $163.84
Typical copayment $31.01 (range $13.39 – $40.96)
Most-billed visit code 99204
Established Patient
$95.12 typical visit price
range $16.96 – $133.52
Typical copayment $23.78 (range $4.24 – $33.38)
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 8

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

Tacrolimus, extended release, (envarsus xr), oral, 0.25 mg J7503
Treatment-Chemotherapy · category RH002N
5 suppliers60 claims15,120 services$1.15 avg. paid by Medicare
Tacrolimus, immediate release, oral, 1 mg J7507
Treatment-Treatment - Miscellaneous · category RX029N
5 suppliers25 claims4,454 services$0.36 avg. paid by Medicare
Prednisone, immediate release or delayed release, oral, 1 mg J7512
Treatment-Treatment - Miscellaneous · category RX029N
5 suppliers36 claims5,315 services$0.01 avg. paid by Medicare
Mycophenolate mofetil, oral, 250 mg J7517
Treatment-Treatment - Miscellaneous · category RX029N
2 suppliers24 claims2,970 services$0.17 avg. paid by Medicare
Mycophenolic acid, oral, 180 mg J7518
Treatment-Treatment - Miscellaneous · category RX029N
5 suppliers16 claims1,200 services$0.99 avg. paid by Medicare
Sirolimus, oral, 1 mg J7520
Treatment-Treatment - Miscellaneous · category RX029N
2 suppliers23 claims484 services$2.59 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Zayas's NPI number?

The NPI number for Carlos Zayas is 1205979564. It was assigned to this individual provider in the NPPES registry on February 15, 2007. The provider is also known as Dr. Carlos F Zayas-Montalvo MD.

Where is Carlos Zayas located?

Carlos Zayas practices at 203 Mills Ave # 9159, Greenville, SC 29605. The listed phone number is (864) 271-1844.

What is Carlos Zayas's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Carlos Zayas enrolled in Medicare?

Yes. Carlos Zayas 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 Carlos Zayas accept?

Health plans from Ambetter from Absolute Total Care, Ambetter of North Carolina, BlueCross BlueShield of South Carolina and InStil Health list Carlos Zayas 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 Zayas affiliated with any hospitals?

According to CMS data, Carlos Zayas is affiliated with Prisma Health Oconee Memorial Hospital, Anmed Health, Prisma Health Greer Memorial Hospital, Prisma Health Hillcrest Hospital and Prisma Health Greenville Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Carlos Zayas was last updated on May 22, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.