2026 NPPES data Endocrinology, Diabetes & Metabolism Physician NPI 1255788873 MD
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JEFFREY ZEN-JI RICO, MD

Endocrinology, Diabetes & Metabolism Physician in SPARTANBURG, South Carolina. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
1K
Medicare Part D claims · 200 beneficiaries · Endocrinology, Diabetes & Metabolism Physician avg: 3K
Generic prescribing
44%
generic claims · 56% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
94.1061/100
▲ 11 pts above national avg 83.1 · [object Object]
Industry payments
$188.35
9 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: JEFFREY ZEN-JI RICO, MD is a Endocrinology, Diabetes & Metabolism Physician ([object Object]) practicing in SPARTANBURG, South Carolina with a Medicare Part D prescribing footprint of 1K claims across 200 beneficiaries — 56% brand-name prescribing . Their CMS MIPS Final Score of 94.1061/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $188.35 across 9 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: JEFFREY ZEN-JI RICO, MD reported a CMS MIPS final score of 94.1061 out of 100, above the 83.1 national average, and filed 1,271 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

JEFFREY ZEN-JI RICO, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

JEFFREY ZEN-JI RICO, MD at a glance

High performer (top quartile)

NPI registry status

Active

Issued 05/24/2016

NPI 1255788873

Primary specialty

Endocrinology, Diabetes & Metabolism Physician

Mid-sized

7,852 US NPIs in this specialty

Medicare Part D claims

1,271 52% vs specialty avg

2023 prescription claims

Specialty avg: 2,639

MIPS final score

94.1061/100 11.006100000000004% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in South Carolina

How Endocrinology, Diabetes & Metabolism Physician compares to other specialties among South Carolina providers

South Carolina providers

Endocrinology, Diabetes & Metabolism Physician share within South Carolina

1. Endocrinology, Diabetes & Metabolism Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Endocrinology, Diabetes & Metabolism Physician share within South Carolina

Medicare quality performance — MIPS

JEFFREY ZEN-JI RICO, MD's 2023 MIPS final score plotted against the Endocrinology, Diabetes & Metabolism Physician national average

High performer (top quartile)
MIPS Final Score
94.1061/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Endocrinology, Diabetes & Metabolism Physician) — 94.1061/100 vs national avg 83.1

0%100%National avg83%94.1%
MIPS final score (Endocrinology, Diabetes & Metabolism Physician) — 94.1061/100 vs national avg 83.1

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

JEFFREY ZEN-JI RICO, MD is a Endocrinology, Diabetes & Metabolism Physician provider practicing in SPARTANBURG, South Carolina, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1255788873. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

JEFFREY ZEN-JI RICO, MD appears in the CMS NPPES registry as a Endocrinology, Diabetes & Metabolism Physician provider holding MD credentials at 101 E WOOD ST, SPARTANBURG, SC, 29303, with a listed phone of (864) 560-6419. NPI 1255788873 was issued on 05/24/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what RICO most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 1,271 prescription claims written by this provider, covering 200 Medicare beneficiaries and totaling roughly $736K in drug spend, split 56% brand-name and 44% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 94.1061/100 for the 2023 performance year (Quality 78.4655), compared with the national average of 83.1.

Endocrinology, Diabetes & Metabolism Physician is a mid-sized specialty nationwide, with 7,852 enrolled providers across 54 states and an average of 2,639 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

101 E WOOD ST
SPARTANBURG, SC 29303

Provider Details

NPI 1255788873
Specialty Endocrinology, Diabetes & Metabolism Physician
Credentials MD
Gender Male
NPI Issued 05/24/2016

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

94.1061
Final Score
Avg: 83.1
78.4655
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where JEFFREY ZEN-JI RICO, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

SPARTANBURG MEDICAL CENTER
★★☆☆☆ 2/5
SPARTANBURG, SC
Acute Care Hospitals
CMS CCN: 420007
PRISMA HEALTH UNIVERSITY MEDICAL GROUP
GREENVILLE, SC

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for JEFFREY ZEN-JI RICO, MD. Source: openpaymentsdata.cms.gov.

Total received

$188

Largest payer

Medtronic, Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Brand-heavy

JEFFREY ZEN-JI RICO, MD — brand share 56.0%
Specialty average (est.)

56% brand-name claims vs 44% generic, on 1,271 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

1,271
Total Claims
$736K
Total Drug Cost
200
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,178
Total Day Supply
62,898
Brand vs Generic
56% brand / 44% generic
Brand Drug Cost
$722K
Generic Drug Cost
$8K

Patient Demographics

Average Patient Age
68.8 years
Avg HCC Risk Score
1.83
Gender Split
56% female / 44% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Levothyroxine Sodium
186
Ozempic
Semaglutide
117
Trulicity
Dulaglutide
102
Jardiance
Empagliflozin
77
Methimazole
71
Metformin Hcl
55
Tresiba Flextouch U-100
Insulin Degludec
53
Novolog Flexpen
Insulin Aspart
49
Synthroid
Levothyroxine Sodium
35
Baqsimi
Glucagon
32

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Endocrinology, Diabetes & Metabolism Physician Overview

How JEFFREY ZEN-JI RICO, MD fits within the Endocrinology, Diabetes & Metabolism Physician landscape nationally.

7,852
Endocrinology, Diabetes & Metabolism Physician Providers in US
54
States with Endocrinology, Diabetes & Metabolism Physician
2,639
Avg Claims per Provider

JEFFREY ZEN-JI RICO, MD's 1,271 claims are below the specialty average of 2,639.

Nearby Endocrinology, Diabetes & Metabolism Physician Providers in South Carolina

Other clinicians with the same primary specialty enrolled in South Carolina, drawn from the same CMS NPPES roster as RICO.

Compare Endocrinology, Diabetes & Metabolism Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JEFFREY ZEN-JI RICO, MD's specialty?
JEFFREY ZEN-JI RICO, MD specializes in Endocrinology, Diabetes & Metabolism Physician and practices in SPARTANBURG, South Carolina. Credentials: MD.
How much does JEFFREY ZEN-JI RICO, MD prescribe under Medicare Part D?
In 2023, JEFFREY ZEN-JI RICO, MD wrote 1,271 Medicare Part D claims totaling $736K in drug costs for 200 beneficiaries.
What is JEFFREY ZEN-JI RICO, MD's Medicare quality score?
JEFFREY ZEN-JI RICO, MD has a CMS MIPS Final Score of 94.1061/100 (Quality: 78.4655). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is JEFFREY ZEN-JI RICO, MD located?
JEFFREY ZEN-JI RICO, MD is located at 101 E WOOD ST, SPARTANBURG, SC, 29303. Phone: (864) 560-6419.
What is JEFFREY ZEN-JI RICO, MD's NPI number?
JEFFREY ZEN-JI RICO, MD's National Provider Identifier (NPI) is 1255788873, issued on 05/24/2016.
Does JEFFREY ZEN-JI RICO, MD prescribe more brand-name or generic drugs?
JEFFREY ZEN-JI RICO, MD's prescribing is 56% brand-name and 44% generic drugs by claim count, with $722K in brand drug costs.
How many Endocrinology, Diabetes & Metabolism Physician providers are there in the US?
There are 7,852 Endocrinology, Diabetes & Metabolism Physician providers across 54 states in the US. The average Endocrinology, Diabetes & Metabolism Physician provider writes 2,639 Medicare Part D claims per year.
What drugs does JEFFREY ZEN-JI RICO, MD prescribe most often?
Based on 2023 Medicare Part D data, JEFFREY ZEN-JI RICO, MD's most frequently prescribed drugs include Levothyroxine Sodium, Ozempic, Trulicity. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JEFFREY ZEN-JI RICO, MD accept Medicare?
JEFFREY ZEN-JI RICO, MD appears in CMS Medicare data with 1,271 Part D claims and 200 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JEFFREY ZEN-JI RICO, MD's credentials?
JEFFREY ZEN-JI RICO, MD's NPI is 1255788873 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology