2026 NPPES data Nephrology Physician NPI 1881834109 MD, FACP, FPCP
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ROBERT NERVES, MD, FACP, FPCP

Nephrology Physician in SINAJANA, Guam. 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
130
Medicare Part D claims · 19 beneficiaries · Nephrology Physician avg: 1K
MIPS score
79.8315/100
▼ 3 pts below national avg 83.1 · [object Object]
Industry payments
$15.7
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

ROBERT NERVES, MD, FACP, FPCP reported a CMS MIPS final score of 79.8315/100 — below the 83.1 national average — and filed 130 Medicare Part D claims in 2023.

79.8315/100
MIPS score · -3 vs avg
130
Part D claims, 2023
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

ROBERT NERVES, MD, FACP, FPCP's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

80 30th percentile higher than 30% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). This entry sits in this band. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

ROBERT NERVES, MD, FACP, FPCP practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about ROBERT NERVES, MD, FACP, FPCP?

Near national average

NPI registry status

Active

Issued 02/26/2009

NPI 1881834109

Primary specialty

Nephrology Physician

Mid-sized

10,534 US NPIs in this specialty

Medicare Part D claims

130 91% vs specialty avg

2023 prescription claims

Specialty avg: 1,454

MIPS final score

79.8315/100 3.268499999999989% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Guam

How Nephrology Physician compares to other specialties among Guam providers

Guam providers

Nephrology Physician share within Guam

1. Nephrology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Nephrology Physician share within Guam

Medicare quality performance — MIPS

ROBERT NERVES, MD, FACP, FPCP's 2023 MIPS final score plotted against the Nephrology Physician national average

Near national average
MIPS Final Score
79.8315/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Nephrology Physician) — 79.8315/100 vs national avg 83.1

0%100%National avg83%79.8%
MIPS final score (Nephrology Physician) — 79.8315/100 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).

ROBERT NERVES, MD, FACP, FPCP appears in the CMS NPPES registry as a Nephrology Physician provider holding MD, FACP, FPCP credentials at 736 ROUTE 4, SINAJANA, GU, 96910, with a listed phone of (671) 649-7232. NPI 1881834109 was issued on 02/26/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what NERVES 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 130 prescription claims written by this provider, covering 19 Medicare beneficiaries and totaling roughly $6K in drug spend. 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 79.8315/100 for the 2023 performance year (Quality 37.0787, Cost 100), compared with the national average of 83.1.

Nephrology Physician is a mid-sized specialty nationwide, with 10,534 enrolled providers across 55 states and an average of 1,454 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

736 ROUTE 4
SINAJANA, GU 96910

Provider Details

NPI 1881834109
Specialty Nephrology Physician
Credentials MD, FACP, FPCP
Gender Male
NPI Issued 02/26/2009

CMS Quality Score (MIPS)

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

79.8315
Final Score
Avg: 83.1
37.0787
Quality
100
Cost

Reporting: Group practice

Hospital and facility affiliations

Facilities where ROBERT NERVES, MD, FACP, FPCP 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.

PACIFIC MED AND NEPHROLOGY
SINAJANA, GU

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 ROBERT NERVES, MD, FACP, FPCP. Source: openpaymentsdata.cms.gov.

Total received

$16

Largest payer

Amgen 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.

Medicare Part D Prescribing Data

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

130
Total Claims
$6K
Total Drug Cost
19
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
136
Total Day Supply
3,950
Generic Drug Cost
$5K

Patient Demographics

Average Patient Age
68.9 years
Avg HCC Risk Score
3.53

Top Prescribed Drugs (Medicare Part D)

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

What ROBERT NERVES, MD, FACP, FPCP prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Allopurinol
18
Amlodipine Besylate
18
Rosuvastatin Calcium
12
Metoprolol Succinate
11

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

Nephrology Physician Overview

How ROBERT NERVES, MD, FACP, FPCP fits within the Nephrology Physician landscape nationally.

10,534
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,454
Avg Claims per Provider

ROBERT NERVES, MD, FACP, FPCP's 130 claims are below the specialty average of 1,454.

Nearby Nephrology Physician Providers in Guam

Other clinicians with the same primary specialty enrolled in Guam, drawn from the same CMS NPPES roster as NERVES.

Compare Nephrology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ROBERT NERVES, MD, FACP, FPCP's specialty?
ROBERT NERVES, MD, FACP, FPCP specializes in Nephrology Physician and practices in SINAJANA, Guam. Credentials: MD, FACP, FPCP.
How much does ROBERT NERVES, MD, FACP, FPCP prescribe under Medicare Part D?
In 2023, ROBERT NERVES, MD, FACP, FPCP wrote 130 Medicare Part D claims totaling $6K in drug costs for 19 beneficiaries.
What is ROBERT NERVES, MD, FACP, FPCP's Medicare quality score?
ROBERT NERVES, MD, FACP, FPCP has a CMS MIPS Final Score of 79.8315/100 (Quality: 37.0787, Cost: 100). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is ROBERT NERVES, MD, FACP, FPCP located?
ROBERT NERVES, MD, FACP, FPCP is located at 736 ROUTE 4, SINAJANA, GU, 96910. Phone: (671) 649-7232.
What is ROBERT NERVES, MD, FACP, FPCP's NPI number?
ROBERT NERVES, MD, FACP, FPCP's National Provider Identifier (NPI) is 1881834109, issued on 02/26/2009.
How many Nephrology Physician providers are there in the US?
There are 10,534 Nephrology Physician providers across 55 states in the US. The average Nephrology Physician provider writes 1,454 Medicare Part D claims per year.
What drugs does ROBERT NERVES, MD, FACP, FPCP prescribe most often?
Based on 2023 Medicare Part D data, ROBERT NERVES, MD, FACP, FPCP's most frequently prescribed drugs include Allopurinol, Amlodipine Besylate, Rosuvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ROBERT NERVES, MD, FACP, FPCP accept Medicare?
ROBERT NERVES, MD, FACP, FPCP appears in CMS Medicare data with 130 Part D claims and 19 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ROBERT NERVES, MD, FACP, FPCP's credentials?
ROBERT NERVES, MD, FACP, FPCP's NPI is 1881834109 with credentials MD, FACP, FPCP. 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