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2026 NPPES data Adult Medicine Physician NPI 1902867351 MD
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Robert Herman, MD

Adult Medicine Physician in Groton, Connecticut.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 2,476 in Adult Medicine 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.
Prescribing volume
939
Medicare Part D claims · 205 beneficiaries · Adult Medicine Physician avg: 3K
MIPS score
83.6/100
▲ 0 pts above national avg 83.5 · Above neutral
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Robert Herman, MD reported a CMS MIPS final score of 83.6/100 - above the 83.5 national average - and filed 939 Medicare Part D claims in 2024.

83.6/100
MIPS score · +0 vs avg
939
Part D claims, 2024
Likely
board-certified (heuristic)
≥39th
pct among measured MIPS (lower-bound band)

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.

Federal trust snapshot

What official records show about Robert Herman, MD

Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1902867351), first enumerated 03/28/2006.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 939 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    CMS quality reporting (MIPS)

    Reported a CMS MIPS final score of 83.6/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • Reported

    Board certification signal

    Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.

    Source: NUCC taxonomy + CMS participation heuristic

  • Reported

    Hospital affiliations

    1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.

    Source: CMS Care Compare

  • Not in federal data

    Individual sanction lookup

    PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.

    Source: State medical board / FSMB

This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.

CMS NPPES provider registry desk

NPI 1902867351 · Adult Medicine Physician

NPI-10 · ENUM-LEGACY · TAX-NARROW · MIPS-INLINE · RX-LIGHT · BOOK-THIN · PHOTO-FINISH

  • NPI-10 1902867351
  • ENUM-LEGACY 2006
  • TAX-NARROW 2,476
  • MIPS-INLINE 83.6/100
  • RX-LIGHT 939
  • BOOK-THIN 27 in Connecticut
  • PHOTO-FINISH Melissa Noble, DO · ±0.2

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Robert Herman, MD's MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

84 ≥ 39th percentile 39% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). Below this entry. 80–90: 129,887 measured providers (29%). This entry sits in this band. 90+: 189,403 measured providers (42%). Above this entry. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured 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.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

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

Where Robert Herman, MD sits

This provider among adult medicine physician peers

Across the 204 adult medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Robert Herman, MD writes more Part D claims than 37% of them and scores higher on MIPS quality than 41% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 98Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 100Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 8Robert Herman, MD, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 41
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one adult medicine physician peer from a representative sample of 60; the gold marker is Robert Herman, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Robert Herman, MD 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 Herman, MD?

Near national average

NPI registry status

Active

Issued 03/28/2006

NPI 1902867351

Primary specialty

Adult Medicine Physician

Niche

2,476 US NPIs in this specialty

Medicare Part D claims

939 68% vs specialty avg

2024 prescription claims

Specialty avg: 2,896

MIPS final score

83.6/100 0.1 pts vs avg

Above neutral band

vs 83.5 national avg

Specialty distribution in Connecticut

How Adult Medicine Physician compares to other specialties among Connecticut providers

Connecticut providers
Clinical Social Worker8.4%Student in an Organized Heal…7.9%Physical Therapist4.2%Pharmacist3.9%Internal Medicine Physician3.4%Mental Health Counselor3.2%Adult Medicine Physician0%
Largest specialties in Connecticut (% of in-state providers)

Medicare quality performance, MIPS

Robert Herman, MD's 2023 MIPS final score plotted against the Adult Medicine Physician national average

Near national average
MIPS Final Score
83.6/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%83.6%
MIPS final score (Adult Medicine Physician) - 83.6/100 vs national avg 83.5
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

85 POHEGANUT DR
Groton, CT 06340
(440) 255-4455

Provider Details

NPI 1902867351
Specialty Adult Medicine Physician
Credentials MD
Gender Male
NPI Issued 03/28/2006

CMS Quality Score (MIPS)

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

83.6341
Final Score
Measured-score avg: 83.5
78.0683
Quality
82
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where Robert Herman, 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.

Prohealth Physicians PC
Groton, CT

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

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2024.

939
Total Claims
$82K
Total Drug Cost
205
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,132.1
Total Day Supply
62,596
Generic Drug Cost
$13K
Opioid Claims
12 (1.3% rate)
Antibiotic Claims
14

Patient Demographics

Average Patient Age
72.2 years
Avg HCC Risk Score
1.24
Gender Split
70% female / 30% male
Age Distribution
<65: 16, 65-74: 113, 75-84: 64, 85+: 12

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.

What Robert Herman, MD prescribes most

Top Medicare Part D drugs by claim count, 2024

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2024
Drug Claims
Atorvastatin Calcium
 70
Levothyroxine Sodium
 45
Amlodipine Besylate
 41
Rosuvastatin Calcium
 37
Lisinopril
 34
Gabapentin
 27
Montelukast Sodium
 25
Losartan Potassium
 24
Metformin Hcl
 24
Hydrochlorothiazide
 23

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

More Adult Medicine Physician in CT → All providers in Connecticut → Compare specialties →

Adult Medicine Physician Overview

How Robert Herman, MD fits within the Adult Medicine Physician landscape nationally.

2,476
Adult Medicine Physician Providers in US
52
States with Adult Medicine Physician
2,896
Avg Claims per Provider

Robert Herman, MD's 939 claims are below the specialty average of 2,896.

Nationwide Adult Medicine Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Herman, both outside Connecticut so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (83.6 here).

Melissa Noble 83.8 OR Soujanya Challa 84.1 TX Saba Tesfamariam 83.2 AZ Naveed Akhtar 84.1 NY

Same NPPES enumeration year (2006)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Frederic Leeds Moraine, OH Karen Walpole Columbia, SC Geza Torok Somerset, NJ Virginia Mandac Anoka, MN

Nearby Adult Medicine Physician Providers in Connecticut

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

One of 27 Adult Medicine Physician providers enrolled in Connecticut, 5 are shown here.

Dr. Abra Aziagbe-Zilevu
MD
Bridgeport, CT
Dr. Michael Baldwin
DO
Essex, CT
Caitlin Balint
APRN
Newtown, CT
Dr. Anita Bennett
M.D.
West Hartford, CT
Christina Bolduc Falzone
APRN FNP-C
Manchester, CT

Compare Adult Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Robert Herman, MD's specialty? ▼
Robert Herman, MD specializes in Adult Medicine Physician and practices in Groton, Connecticut. Credentials: MD.
How much does Robert Herman, MD prescribe under Medicare Part D? ▼
In 2024, Robert Herman, MD wrote 939 Medicare Part D claims totaling $82K in drug costs for 205 beneficiaries.
What is Robert Herman, MD's Medicare quality score? ▼
Robert Herman, MD has a CMS MIPS Final Score of 83.6/100 (Quality: 78.1). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Robert Herman, MD located? ▼
Robert Herman, MD is located at 85 POHEGANUT DR, Groton, CT, 06340. Phone: (440) 255-4455.
What is Robert Herman, MD's NPI number? ▼
Robert Herman, MD's National Provider Identifier (NPI) is 1902867351, issued on 03/28/2006.
Does Robert Herman, MD prescribe opioids? ▼
Yes, Robert Herman, MD had 12 opioid claims in 2024 with an opioid prescribing rate of 1.3%.
How many Adult Medicine Physician providers are there in the US? ▼
There are 2,476 Adult Medicine Physician providers across 52 states in the US. The average Adult Medicine Physician provider writes 2,896 Medicare Part D claims per year.
What drugs does Robert Herman, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Robert Herman, MD's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Robert Herman, MD accept Medicare? ▼
Robert Herman, MD appears in CMS Medicare data with 939 Part D claims and 205 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Robert Herman, MD's credentials? ▼
Robert Herman, MD's NPI is 1902867351 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.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2024). 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 August 2026 (NPPES) / 2024 (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

Compiled from official public sources by the editorial process.

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 August 2026.