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DR. AKIYOMI O. FIELDS M.D.
NPI 1104118546
Internal Medicine in Brooklyn, NY

Active since May 04, 2011PECOS EnrolledAccepts Medicare Assignment
95.38/100
CMS Quality Rating
55 GREENE AVE, STE. LLB, BROOKLYN, NY 11238(718) 789-5900 Get Directions Write a Review

NPPES record last updated: October 30, 2019. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Akiyomi O. Fields M.d. NPPES

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

DR. AKIYOMI O. FIELDS M.D. (NPI 1104118546) is an individual internal medicine provider in Brooklyn, New York, licensed in Georgia (082040) and active in the NPI registry since May 2011. He is enrolled in Medicare PECOS, is affiliated with Brooklyn Hospital Center - Downtown Campus, and is a graduate of Other (2008).

NPPES Registry Identity

NPI1104118546
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. AKIYOMI O. FIELDSCredential: M.D.
Location Address55 GREENE AVE, STE. LLBBrooklyn, NY 11238-6406
Mailing AddressPo Box 140444Staten Island, NY 10314-0444 · (347) 733-2677
Phone(718) 789-5900
Sole ProprietorNo
Medical School CMSOtherGraduated 2008
Enumeration DateMay 4, 2011
Last NPPES UpdateOctober 30, 2019
✔ NPI 1104118546 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in GA · 082040
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
55 GREENE AVE, Brooklyn, NY 11238
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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. Akiyomi O. Fields 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 ID345414157
PECOS Enrollment IDI20111114000060
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

3

Medicare enrollment records show Akiyomi Fields reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Atlantic Professional Services Of Rhode Island Incorporated
139 mi
Hospitalist
100 KENYON AVENUE
Wakefield, RI 02879
  • Reassigned Medicare billing, New York enrollment
  • 28 clinicians in this Medicare group
NPI 1922036946 (401) 782-8000
Delphi Hospitalist Services LLC
255 mi
Hospitalist
1160 CHILI AVE STE 200
Rochester, NY 14624
  • Reassigned Medicare billing, New York enrollment
  • 185 clinicians in this Medicare group
NPI 1922270420 (585) 500-4814
Apogee Medical Group, New York, PC
2,133 mi
Internal Medicine
15059 N SCOTTSDALE ROAD, SUITE 600
Scottsdale, AZ 85254
  • Reassigned Medicare billing, New York enrollment
  • 354 clinicians in this Medicare group
NPI 1841520236 (602) 778-3600

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 6

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.
380 services101 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.
61 services33 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
54 services54 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.
33 services33 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.
14 services14 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.
12 services12 patients

Hospital Affiliations CMS Care Compare

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

Brooklyn Hospital Center - Downtown Campus

Acute Care Hospitals · Brooklyn, NY
1/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number330056
Location121 Dekalb AvenueBrooklyn, NY 11201 · Kings County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11238 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
$154.28 typical visit price
range $67.40 – $203.53
Typical copayment $38.57 (range $16.85 – $50.88)
Most-billed visit code 99204
Established Patient
$117.62 typical visit price
range $21.66 – $164.45
Typical copayment $29.40 (range $5.41 – $41.11)
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.

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.

95.38/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality81.26
Promoting Interoperability99.17
Improvement Activities40

Referred Medical Equipment & Supplies CMS DME claims 4

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

Home ventilator, any type, used with invasive interface, (e.g., tracheostomy tube) E0465
DME-Other DME · category DE005N
1 supplier12 claims24 services$922.57 avg. paid by Medicare
Manual wheelchair accessory, anti-tipping device, each E0971
DME-Wheelchairs · category DD021N
1 supplier11 claims11 services$2.38 avg. paid by Medicare
Wheelchair accessory, adjustable height, detachable armrest, complete assembly, each E0973
DME-Wheelchairs · category DD021N
1 supplier11 claims11 services$4.29 avg. paid by Medicare
Elevating leg rests, pair (for use with capped rental wheelchair base) K0195
DME-Wheelchairs · category DD021N
1 supplier11 claims11 services$5.55 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 19

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

DR. JEDIDIAH BURACK MD
Internal Medicine
55 GREENE AVE
BROOKLYN, NY 11238
Kings County (718) 789-5900
WEILL MEDICAL COLLEGE OF CORNELL
Internal Medicine (Gastroenterology)
55 GREENE AVE
BROOKLYN, NY 11238
Kings County (718) 789-5900
ADENIKE AUGUSTE NP
Nurse Practitioner (Women's Health)
55 GREENE AVE
BROOKLYN, NY 11238
Kings County (718) 789-5900
VIJAY K. BATTU M.D., P.C.
Ophthalmology
55 GREENE AVE, 2B
BROOKLYN, NY 11238
Kings County (718) 636-2070
KIRAN K BHAT M.D.
Internal Medicine (Gastroenterology)
55 GREENE AVE
BROOKLYN, NY 11238
Kings County (917) 400-9426
HANSON PLACE PHYSICIAN ASSOCIATES, P.C.
Internal Medicine (Gastroenterology)
55 GREENE AVE, SUITE 2F
BROOKLYN, NY 11238
Kings County (718) 783-3690
DR. OLGA WILDFEUER MD
Internal Medicine
55 GREENE AVE
BROOKLYN, NY 11238
Kings County (718) 789-5900
BROOKLYN SURGICAL PLLC
Surgery
55 GREENE AVE
BROOKLYN, NY 11238
Kings County (718) 257-0200

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 Akiyomi Fields's NPI number?

The NPI number for Akiyomi Fields is 1104118546. It was assigned to this individual provider in the NPPES registry on May 4, 2011.

Where is Akiyomi Fields located?

Akiyomi Fields practices at 55 Greene Ave Ste. Llb, Brooklyn, NY 11238. The listed phone number is (718) 789-5900.

What is Akiyomi Fields's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Akiyomi Fields enrolled in Medicare?

Yes. Akiyomi Fields 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 Akiyomi Fields's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Akiyomi Fields reassigns Medicare benefits to 3 organizations: Atlantic Professional Services Of Rhode Island Incorporated (Wakefield, RI), Delphi Hospitalist Services LLC (Rochester, NY) and Apogee Medical Group, New York, PC (Scottsdale, AZ). 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 Akiyomi Fields's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Akiyomi Fields affiliated with any hospitals?

According to CMS data, Akiyomi Fields is affiliated with Brooklyn Hospital Center - Downtown Campus.

When was this NPI record last updated?

The NPPES record for Akiyomi Fields was last updated on October 30, 2019. 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.