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DR. ERNESTO MANUEL GRENIER M.D.
NPI 1366614927
Psychiatry & Neurology - Psychiatry in Miami, FL

Active since March 24, 2008PECOS EnrolledAccepts Medicare Assignment
87.41/100
CMS Quality Rating
1695 NW 9TH AVE, MIAMI, FL 33136(305) 355-7147 Get Directions Write a Review

NPPES record last updated: June 5, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 5, 2020, Aug 13, 2019 (2 updates tracked since 2019).

About Dr. Ernesto Manuel Grenier M.d. NPPES

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

DR. ERNESTO MANUEL GRENIER M.D. (NPI 1366614927) is an individual psychiatry provider in Miami, Florida, licensed in Florida (ME107932) and active in the NPI registry since March 2008. He is enrolled in Medicare PECOS, is affiliated with Jackson Health System, and maintains a secondary practice location in Miami.

NPPES Registry Identity

NPI1366614927
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. ERNESTO MANUEL GRENIERCredential: M.D.
Location Address1695 NW 9TH AVEMiami, FL 33136-1409
Mailing Address1990 Sw 33rd CtMiami, FL 33145-2226 · (305) 446-8291
Phone(305) 355-7147
Sole ProprietorYes
Medical School CMSOtherGraduated 1999
Enumeration DateMarch 24, 2008
Last NPPES UpdateJune 5, 20202 updates tracked since enumeration
NPPES CertifiedJune 5, 2020
✔ NPI 1366614927 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in FL · ME107932
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
1695 NW 9TH AVE, Miami, FL 33136
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Secondary Practice Location 1

Location 11611 NW 12th AveMiami, FL 33136-1005 · Phone (305) 355-7147

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cigna Healthcare, Cigna HealthCare of Florida, Inc., Florida Blue (BlueCross BlueShield FL) and more.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. Ernesto Manuel Grenier 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 ID446401129
PECOS Enrollment IDI20121130000207
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

4

Medicare enrollment records show Ernesto Grenier reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Public Health Trust Of Miami Dade County Florida
Same address
Adult Day Care
1695 NW 9TH AVE
Miami, FL 33136
  • Reassigned Medicare billing, Florida enrollment
  • Also billed through NPI 1063417483 (Florida)
  • 95 clinicians in this Medicare group
NPI 1508931973 (305) 955-8234
Public Health Trust Of Miami Dade County Florida
0.3 mi
General Practice
1611 NW 12TH AVE
Miami, FL 33136
  • Reassigned Medicare billing, Florida enrollment
  • 570 clinicians in this Medicare group
NPI 1134384423 (305) 585-5315
Key West Hma Physician Management, LLC
111 mi
Internal Medicine
22974 OVERSEAS HWY
Cudjoe Key, FL 33042
  • Reassigned Medicare billing, Florida enrollment
  • 71 clinicians in this Medicare group
NPI 1871548651 (305) 872-5600
Asana Integrated Medical Group PC
1,539 mi
Psychiatry
4500 N LEWIS AVE
Sioux Falls, SD 57104
  • Reassigned Medicare billing, Florida enrollment
  • 33 clinicians in this Medicare group
NPI 1396783379 (605) 606-0100

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 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.

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.
795 services124 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.
347 services70 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
142 services73 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.
131 services66 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.
39 services35 patients

Hospital Affiliations CMS Care Compare 2

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

Jackson Health System

Acute Care Hospitals · Miami, FL
1/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number100022
Location1611 NW 12th AveMiami, FL 33136 · Miami-Dade County
Emergency services Birthing friendly

Lower Keys Medical Center

Acute Care Hospitals · Key West, FL
3/5 CMS rating
OwnershipProprietary
CMS Certification Number100150
Location5900 College RoadKey West, FL 33040 · Monroe County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 33136 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
$187.05 typical visit price
range $60.92 – $187.05
Typical copayment $46.76 (range $15.23 – $46.76)
Most-billed visit code 99205
Established Patient
$75.86 typical visit price
range $18.99 – $150.24
Typical copayment $18.96 (range $4.74 – $37.56)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

87.41/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality80.73
Improvement Activities40
Cost60.03

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.

MISS JENNIFER HARRISON LMHC
Counselor (Mental Health)
1695 NW 9TH AVE, 2416
MIAMI, FL 33136
Miami-Dade County (305) 355-8059
DR. NICOLETTA B TESSLER PSY.D.
Psychologist (Clinical)
1695 NW 9TH AVE, ROOM 2415
MIAMI, FL 33136
Miami-Dade County (305) 355-7250
MS. SHANALEE MARSHAGAY GRIFFITHS PMHNP-BC
Nurse Practitioner (Psychiatric/Mental Health)
1695 NW 9TH AVE
MIAMI, FL 33136
Miami-Dade County (305) 355-7000
MS. MADELINE B REYES LMHC
Counselor (Mental Health)
1695 NW 9TH AVE
MIAMI, FL 33136
Miami-Dade County (305) 355-7030
MS. NANCY E ARNOVITS LCSW
Social Worker (Clinical)
1695 NW 9TH AVE, MENTAL HEALTH HOSP CENTER SUITE #1208
MIAMI, FL 33136
Miami-Dade County (305) 324-4357
DR. MERCEDES BRIONES PSY.D.
Psychologist (Clinical)
1695 NW 9TH AVE
MIAMI, FL 33136
Miami-Dade County (305) 355-8016
PUBLIC HEALTH TRUST OF DADE COUNTY FLORIDA
Psychiatric Unit
1695 NW 9TH AVE
MIAMI, FL 33136
Miami-Dade County (305) 355-8234
DR. CATHERINE DE LA OSA
Psychologist
1695 NW 9TH AVE
MIAMI, FL 33136
Miami-Dade County (305) 355-9427

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 Ernesto Grenier's NPI number?

The NPI number for Ernesto Grenier is 1366614927. It was assigned to this individual provider in the NPPES registry on March 24, 2008.

Where is Ernesto Grenier located?

Ernesto Grenier practices at 1695 NW 9th Ave, Miami, FL 33136. The listed phone number is (305) 355-7147.

What is Ernesto Grenier's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Ernesto Grenier enrolled in Medicare?

Yes. Ernesto Grenier 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 Ernesto Grenier's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ernesto Grenier reassigns Medicare benefits to 4 organizations: Public Health Trust Of Miami Dade County Florida (Miami, FL), Public Health Trust Of Miami Dade County Florida (Miami, FL), Key West Hma Physician Management, LLC (Cudjoe Key, FL) and Asana Integrated Medical Group PC (Sioux Falls, SD). 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 Ernesto Grenier's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ernesto Grenier accept?

Health plans from Cigna HealthCare of Florida, Inc., Cigna Healthcare, Florida Blue (BlueCross BlueShield FL), Florida Blue HMO (a BlueCross BlueShield FL company) and Oscar Health and 2 other insurers list Ernesto Grenier 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 Ernesto Grenier affiliated with any hospitals?

According to CMS data, Ernesto Grenier is affiliated with Jackson Health System and Lower Keys Medical Center.

When was this NPI record last updated?

The NPPES record for Ernesto Grenier was last updated on June 5, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.