2026 NPPES data Specialist NPI 1396715231 MD
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PETER ANDERSON, MD

Specialist in NEW MILFORD, Connecticut. 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
10K
Medicare Part D claims · 683 beneficiaries · Specialist avg: 1K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
94.2464/100
▲ 11 pts above national avg 83.1 · [object Object]
What the federal data reveals: PETER ANDERSON, MD is a Specialist ([object Object]) practicing in NEW MILFORD, Connecticut with a Medicare Part D prescribing footprint of 10K claims across 683 beneficiaries — 13% brand-name prescribing . Their CMS MIPS Final Score of 94.2464/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: PETER ANDERSON, MD reported a CMS MIPS final score of 94.2464 out of 100, above the 83.1 national average, and filed 9,794 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

PETER ANDERSON, MD at a glance

High performer (top quartile)

NPI registry status

Active

Issued 01/24/2006

NPI 1396715231

Primary specialty

Specialist

High-volume

69,658 US NPIs in this specialty

Medicare Part D claims

9,794 564% vs specialty avg

2023 prescription claims

Specialty avg: 1,474

MIPS final score

94.2464/100 11.1464% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Connecticut

How Specialist compares to other specialties among Connecticut providers

Connecticut providers

Specialist share within Connecticut

1. Specialist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Specialist share within Connecticut

Medicare quality performance — MIPS

PETER ANDERSON, MD's 2023 MIPS final score plotted against the Specialist national average

High performer (top quartile)
MIPS Final Score
94.2464/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Specialist) — 94.2464/100 vs national avg 83.1

0%100%National avg83%94.2%
MIPS final score (Specialist) — 94.2464/100 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).

PETER ANDERSON, MD is a Specialist provider practicing in NEW MILFORD, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1396715231. 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.

PETER ANDERSON, MD appears in the CMS NPPES registry as a Specialist provider holding MD credentials at 1 OLD PARK LANE, NEW MILFORD, CT, 06776, with a listed phone of (860) 355-3728. NPI 1396715231 was issued on 01/24/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ANDERSON 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 9,794 prescription claims written by this provider, covering 683 Medicare beneficiaries and totaling roughly $1.2 million in drug spend, split 13% brand-name and 87% generic by claim count, with an opioid prescribing rate of 3.2%. 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 94.2464/100 for the 2023 performance year (Quality 78.2615), compared with the national average of 83.1.

Specialist is a high-volume specialty nationwide, with 69,658 enrolled providers across 55 states and an average of 1,474 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

1 OLD PARK LANE
NEW MILFORD, CT 06776

Provider Details

NPI 1396715231
Specialty Specialist
Credentials MD
Gender Male
NPI Issued 01/24/2006

CMS Quality Score (MIPS)

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

94.2464
Final Score
Avg: 83.1
78.2615
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where PETER ANDERSON, 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.

NUVANCE HEALTH MEDICAL PRACTICE CT INC
NEW MILFORD, 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).

Brand vs generic prescribing mix · Typical

PETER ANDERSON, MD — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 9,794 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.

9,794
Total Claims
$1.2M
Total Drug Cost
683
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
20,403
Total Day Supply
584,161
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$1.0M
Generic Drug Cost
$208K
Opioid Claims
310 (3.2% rate)
Antibiotic Claims
218

Patient Demographics

Average Patient Age
74.7 years
Avg HCC Risk Score
1.04
Gender Split
52% female / 48% male
Age Distribution
<65: 62, 65-74: 292, 75-84: 209, 85+: 120

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Atorvastatin Calcium
567
Lisinopril
434
Amlodipine Besylate
408
Hydrochlorothiazide
376
Losartan Potassium
304
Metoprolol Succinate
286
Levothyroxine Sodium
256
Metformin Hcl
229
Pantoprazole Sodium
223
Rosuvastatin Calcium
200

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

Specialist Overview

How PETER ANDERSON, MD fits within the Specialist landscape nationally.

69,658
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider

PETER ANDERSON, MD's 9,794 claims are above the specialty average of 1,474.

Nearby Specialist Providers in Connecticut

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

Compare Specialist nationally: see state-by-state distribution →

Frequently Asked Questions

What is PETER ANDERSON, MD's specialty?
PETER ANDERSON, MD specializes in Specialist and practices in NEW MILFORD, Connecticut. Credentials: MD.
How much does PETER ANDERSON, MD prescribe under Medicare Part D?
In 2023, PETER ANDERSON, MD wrote 9,794 Medicare Part D claims totaling $1.2M in drug costs for 683 beneficiaries.
What is PETER ANDERSON, MD's Medicare quality score?
PETER ANDERSON, MD has a CMS MIPS Final Score of 94.2464/100 (Quality: 78.2615). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is PETER ANDERSON, MD located?
PETER ANDERSON, MD is located at 1 OLD PARK LANE, NEW MILFORD, CT, 06776. Phone: (860) 355-3728.
What is PETER ANDERSON, MD's NPI number?
PETER ANDERSON, MD's National Provider Identifier (NPI) is 1396715231, issued on 01/24/2006.
Does PETER ANDERSON, MD prescribe more brand-name or generic drugs?
PETER ANDERSON, MD's prescribing is 13% brand-name and 87% generic drugs by claim count, with $1.0M in brand drug costs.
Does PETER ANDERSON, MD prescribe opioids?
Yes, PETER ANDERSON, MD had 310 opioid claims in 2023 with an opioid prescribing rate of 3.2%.
How many Specialist providers are there in the US?
There are 69,658 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does PETER ANDERSON, MD prescribe most often?
Based on 2023 Medicare Part D data, PETER ANDERSON, MD's most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does PETER ANDERSON, MD accept Medicare?
PETER ANDERSON, MD appears in CMS Medicare data with 9,794 Part D claims and 683 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify PETER ANDERSON, MD's credentials?
PETER ANDERSON, MD's NPI is 1396715231 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