2026 NPPES data Psychiatry Physician NPI 1306831391 MD
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DOUGLAS BERV, MD

Psychiatry Physician in HAMDEN, 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
1K
Medicare Part D claims · 105 beneficiaries · Psychiatry Physician avg: 1K
Generic prescribing
96%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: DOUGLAS BERV, MD is a Psychiatry Physician ([object Object]) practicing in HAMDEN, Connecticut with a Medicare Part D prescribing footprint of 1K claims across 105 beneficiaries — 4% brand-name prescribing .

What stands out: DOUGLAS BERV, MD filed 1,470 Medicare Part D claims in 2023 across HAMDEN, Connecticut. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

DOUGLAS BERV, 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).

DOUGLAS BERV, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 09/15/2005

NPI 1306831391

Primary specialty

Psychiatry Physician

High-volume

53,104 US NPIs in this specialty

Medicare Part D claims

1,470 42% vs specialty avg

2023 prescription claims

Specialty avg: 1,038

Specialty distribution in Connecticut

How Psychiatry Physician compares to other specialties among Connecticut providers

Connecticut providers

Psychiatry Physician share within Connecticut

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

Specialty board-certification context

Estimated specialty board-certified rate — Psychiatry Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Psychiatry Physician ABMS/AOA estimate

Est. board-certified rate (Psychiatry Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Psychiatry Physician) — ABMS / AOA estimate

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).

DOUGLAS BERV, MD is a Psychiatry Physician provider practicing in HAMDEN, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1306831391. 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.

DOUGLAS BERV, MD appears in the CMS NPPES registry as a Psychiatry Physician provider holding MD credentials at 60 WASHINGTON AVE, HAMDEN, CT, 06518, with a listed phone of (203) 407-6400. NPI 1306831391 was issued on 09/15/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BERV 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 1,470 prescription claims written by this provider, covering 105 Medicare beneficiaries and totaling roughly $93K in drug spend, split 4% brand-name and 96% 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.

Psychiatry Physician is a high-volume specialty nationwide, with 53,104 enrolled providers across 56 states and an average of 1,038 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

60 WASHINGTON AVE
HAMDEN, CT 06518

Provider Details

NPI 1306831391
Specialty Psychiatry Physician
Credentials MD
Gender Male
NPI Issued 09/15/2005

Brand vs generic prescribing mix · Generic-heavy

DOUGLAS BERV, MD — brand share 4.0%
Specialty average (est.)

4% brand-name claims vs 96% generic, on 1,470 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.

1,470
Total Claims
$93K
Total Drug Cost
105
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,242
Total Day Supply
96,844
Brand vs Generic
4% brand / 96% generic
Brand Drug Cost
$37K
Generic Drug Cost
$57K

Patient Demographics

Average Patient Age
70.4 years
Avg HCC Risk Score
1.14
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
Clonazepam
172
Lamotrigine
132
Lorazepam
114
Quetiapine Fumarate
80
Duloxetine Hcl
73
Divalproex Sodium Er
Divalproex Sodium
68
Gabapentin
64
Alprazolam
55
Aripiprazole
52
Dextroamphetamine-Amphetamine
Dextroamphetamine/Amphetamine
47

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

Psychiatry Physician Overview

How DOUGLAS BERV, MD fits within the Psychiatry Physician landscape nationally.

53,104
Psychiatry Physician Providers in US
56
States with Psychiatry Physician
1,038
Avg Claims per Provider

DOUGLAS BERV, MD's 1,470 claims are above the specialty average of 1,038.

Nearby Psychiatry Physician Providers in Connecticut

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

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

Frequently Asked Questions

What is DOUGLAS BERV, MD's specialty?
DOUGLAS BERV, MD specializes in Psychiatry Physician and practices in HAMDEN, Connecticut. Credentials: MD.
How much does DOUGLAS BERV, MD prescribe under Medicare Part D?
In 2023, DOUGLAS BERV, MD wrote 1,470 Medicare Part D claims totaling $93K in drug costs for 105 beneficiaries.
Where is DOUGLAS BERV, MD located?
DOUGLAS BERV, MD is located at 60 WASHINGTON AVE, HAMDEN, CT, 06518. Phone: (203) 407-6400.
What is DOUGLAS BERV, MD's NPI number?
DOUGLAS BERV, MD's National Provider Identifier (NPI) is 1306831391, issued on 09/15/2005.
Does DOUGLAS BERV, MD prescribe more brand-name or generic drugs?
DOUGLAS BERV, MD's prescribing is 4% brand-name and 96% generic drugs by claim count, with $37K in brand drug costs.
How many Psychiatry Physician providers are there in the US?
There are 53,104 Psychiatry Physician providers across 56 states in the US. The average Psychiatry Physician provider writes 1,038 Medicare Part D claims per year.
What drugs does DOUGLAS BERV, MD prescribe most often?
Based on 2023 Medicare Part D data, DOUGLAS BERV, MD's most frequently prescribed drugs include Clonazepam, Lamotrigine, Lorazepam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DOUGLAS BERV, MD accept Medicare?
DOUGLAS BERV, MD appears in CMS Medicare data with 1,470 Part D claims and 105 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DOUGLAS BERV, MD's credentials?
DOUGLAS BERV, MD's NPI is 1306831391 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.
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