2026 NPPES data Psychiatry Physician NPI 1609850171 MD
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CARLOS COLLIN, MD

Psychiatry Physician in ROCKVILLE, Maryland. 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
611
Medicare Part D claims · 21 beneficiaries · Psychiatry Physician avg: 1K
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: CARLOS COLLIN, MD is a Psychiatry Physician ([object Object]) practicing in ROCKVILLE, Maryland with a Medicare Part D prescribing footprint of 611 claims across 21 beneficiaries — 14% brand-name prescribing .

What stands out: CARLOS COLLIN, MD filed 611 Medicare Part D claims in 2023 across ROCKVILLE, Maryland. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

CARLOS COLLIN, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 3 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

CARLOS COLLIN, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 11/30/2005

NPI 1609850171

Primary specialty

Psychiatry Physician

High-volume

53,104 US NPIs in this specialty

Medicare Part D claims

611 41% vs specialty avg

2023 prescription claims

Specialty avg: 1,038

Specialty distribution in Maryland

How Psychiatry Physician compares to other specialties among Maryland providers

Maryland providers

Psychiatry Physician share within Maryland

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

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).

CARLOS COLLIN, MD is a Psychiatry Physician provider practicing in ROCKVILLE, Maryland, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1609850171. 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.

CARLOS COLLIN, MD appears in the CMS NPPES registry as a Psychiatry Physician provider holding MD credentials at 14901 BROSCHART RD, ROCKVILLE, MD, 20850, with a listed phone of (703) 698-5220. NPI 1609850171 was issued on 11/30/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what COLLIN 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 611 prescription claims written by this provider, covering 21 Medicare beneficiaries and totaling roughly $88K in drug spend, split 14% brand-name and 86% 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

14901 BROSCHART RD
ROCKVILLE, MD 20850

Provider Details

NPI 1609850171
Specialty Psychiatry Physician
Credentials MD
Gender Male
NPI Issued 11/30/2005

Hospital and facility affiliations

Facilities where CARLOS COLLIN, 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.

ACCESS TELECARE CALIFORNIA PC
SAN MATEO, CA
ACCESS TELECARE PLLC
INDIAN LAND, SC
ROCKFORD HEALTH PHYSICIANS
ROCKFORD, IL

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

CARLOS COLLIN, MD — brand share 14.0%
Specialty average (est.)

14% brand-name claims vs 86% generic, on 611 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.

611
Total Claims
$88K
Total Drug Cost
21
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
623
Total Day Supply
18,214
Brand vs Generic
14% brand / 86% generic
Brand Drug Cost
$54K
Generic Drug Cost
$34K

Patient Demographics

Average Patient Age
49.8 years
Avg HCC Risk Score
1.12

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Risperidone
58
Benztropine Mesylate
50
Fluvoxamine Maleate
42
Haloperidol
40
Quetiapine Fumarate
32
Sertraline Hcl
31
Topiramate
31
Divalproex Sodium
25
Clozapine
22
Clonidine Hcl
21

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

Psychiatry Physician Overview

How CARLOS COLLIN, 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

CARLOS COLLIN, MD's 611 claims are below the specialty average of 1,038.

Nearby Psychiatry Physician Providers in Maryland

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

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

Frequently Asked Questions

What is CARLOS COLLIN, MD's specialty?
CARLOS COLLIN, MD specializes in Psychiatry Physician and practices in ROCKVILLE, Maryland. Credentials: MD.
How much does CARLOS COLLIN, MD prescribe under Medicare Part D?
In 2023, CARLOS COLLIN, MD wrote 611 Medicare Part D claims totaling $88K in drug costs for 21 beneficiaries.
Where is CARLOS COLLIN, MD located?
CARLOS COLLIN, MD is located at 14901 BROSCHART RD, ROCKVILLE, MD, 20850. Phone: (703) 698-5220.
What is CARLOS COLLIN, MD's NPI number?
CARLOS COLLIN, MD's National Provider Identifier (NPI) is 1609850171, issued on 11/30/2005.
Does CARLOS COLLIN, MD prescribe more brand-name or generic drugs?
CARLOS COLLIN, MD's prescribing is 14% brand-name and 86% generic drugs by claim count, with $54K 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 CARLOS COLLIN, MD prescribe most often?
Based on 2023 Medicare Part D data, CARLOS COLLIN, MD's most frequently prescribed drugs include Risperidone, Benztropine Mesylate, Fluvoxamine Maleate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CARLOS COLLIN, MD accept Medicare?
CARLOS COLLIN, MD appears in CMS Medicare data with 611 Part D claims and 21 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CARLOS COLLIN, MD's credentials?
CARLOS COLLIN, MD's NPI is 1609850171 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