NPI registry status
Active
2026 NPPES data Clinical Genetics (M.D.) Physician NPI 1811287907 MD
Verify on CMS → Robert Essman Hufnagel, MD
Clinical Genetics (M.D.) Physician in Honolulu, Hawaii.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 823 in Clinical Genetics (M.D.) Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
What the federal data shows
Robert Essman Hufnagel, MD is a Clinical Genetics (M.D.) Physician in Honolulu, Hawaii, listed in the federal CMS National Provider Identifier registry.
- #236
- Clinical Genetics (M.D.) Physician rank among Hawaii specialties
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.
CMS NPPES provider registry desk
NPI 1811287907 · Clinical Genetics (M.D.) Physician
NPI-10 · ENUM-MID · TAX-NARROW · RX-NONE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1811287907
- ENUM-MID 2011
- TAX-NARROW 823
- RX-NONE No Part D
- BOOK-THIN 4 in Hawaii
- PHOTO-ENUM Iris Jolly Joanna Me… · 2011
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Board-eligible specialty (heuristic, not verified)
Robert Essman Hufnagel, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Robert Essman Hufnagel, MD?
Quality data not reportedPrimary specialty
Clinical Genetics (M.D.) Physician
Specialty distribution in Hawaii
How Clinical Genetics (M.D.) Physician compares to other specialties among Hawaii providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Clinical Genetics (M.D.) Physician. Verify directly:
How MIPS and board certification work
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).
Practice Address
Provider Details
| NPI | 1811287907 |
|---|---|
| Specialty | Clinical Genetics (M.D.) Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 04/11/2011 |
Clinical Genetics (M.D.) Physician Overview
How Robert Essman Hufnagel, MD fits within the Clinical Genetics (M.D.) Physician landscape nationally.
823
Clinical Genetics (M.D.) Physician Providers in US
50
States with Clinical Genetics (M.D.) Physician
261
Avg Claims per Provider
Nationwide Clinical Genetics (M.D.) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Essman Hufnagel, both outside Hawaii so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2011)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Clinical Genetics (M.D.) Physician Providers in Hawaii
Other clinicians with the same primary specialty enrolled in Hawaii, drawn from the same CMS NPPES roster as Essman Hufnagel.
One of 4 Clinical Genetics (M.D.) Physician providers enrolled in Hawaii, 3 are shown here.
Dr. Sophia Hufnagel
MD
Honolulu, HI
Dr. Julie Ireland
MD
Ewa Beach, HI
Dr. David Ng
M.D.
Honolulu, HI
Compare Clinical Genetics (M.D.) Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Robert Essman Hufnagel, MD's specialty? ▼
Robert Essman Hufnagel, MD specializes in Clinical Genetics (M.D.) Physician and practices in Honolulu, Hawaii. Credentials: MD.
Where is Robert Essman Hufnagel, MD located? ▼
Robert Essman Hufnagel, MD is located at 501 ALAKAWA ST STE 201, Honolulu, HI, 96817. Phone: (808) 432-0000.
What is Robert Essman Hufnagel, MD's NPI number? ▼
Robert Essman Hufnagel, MD's National Provider Identifier (NPI) is 1811287907, issued on 04/11/2011.
How many Clinical Genetics (M.D.) Physician providers are there in the US? ▼
There are 823 Clinical Genetics (M.D.) Physician providers across 50 states in the US. The average Clinical Genetics (M.D.) Physician provider writes 261 Medicare Part D claims per year.
Does Robert Essman Hufnagel, MD accept Medicare? ▼
Robert Essman Hufnagel, MD appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Robert Essman Hufnagel, MD's credentials? ▼
Robert Essman Hufnagel, MD's NPI is 1811287907 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
View source datasets and methodology notes
- 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.
- 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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.