CARLOS COLLIN MD
NPI 1609850171
Psychiatry & Neurology - Psychiatry in Rockville, MD
About Carlos Collin Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CARLOS COLLIN MD (NPI 1609850171) is an individual psychiatry provider in Rockville, Maryland, licensed in Maryland (D0058156) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS and is a graduate of Other (1980).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Carlos Collin Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
9Medicare enrollment records show Carlos Collin reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fairfax, VA 22031
- Reassigned Medicare billing, District of Columbia and Virginia enrollments
- 17 clinicians in this Medicare group
Huntsville, AL 35801
- Reassigned Medicare billing, Alabama, Arkansas, Arizona, Colorado, Connecticut, District of Columbia, Florida, Iowa, Illinois, Louisiana, Maryland, Michigan, Missouri, North Carolina, Nebraska, New Hampshire, New Jersey, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, Vermont, Washington and Wisconsin enrollments
- Medicare enrollment name: Access Telecare PLLC
- Also billed through NPI 1013303080 (Wisconsin)
- 149 clinicians in this Medicare group
Harvard, IL 60033
- Reassigned Medicare billing, Illinois enrollment
- 382 clinicians in this Medicare group
Lake Geneva, WI 53147
- Reassigned Medicare billing, Wisconsin and Illinois enrollments
- Also billed through NPI 1598718603 (Wisconsin)
- 271 clinicians in this Medicare group
Rockford, IL 61114
- Reassigned Medicare billing, Illinois enrollment
- 1,375 clinicians in this Medicare group
Freeport, IL 61032
- Reassigned Medicare billing, Illinois enrollment
- 391 clinicians in this Medicare group
Freeport, IL 61032
- Reassigned Medicare billing, Illinois enrollment
- 478 clinicians in this Medicare group
Dallas, TX 75201
- Reassigned Medicare billing, California and Massachusetts enrollments
- Medicare enrollment name: Access Telecare California PC
- 194 clinicians in this Medicare group
Dallas, TX 75201
- Reassigned Medicare billing, Massachusetts enrollment
- 23 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20850 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ROCKVILLE, MD 20850
ROCKVILLE, MD 20850
ROCKVILLE, MD 20850
ROCKVILLE, MD 20850
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Carlos Collin's NPI number?
The NPI number for Carlos Collin is 1609850171. It was assigned to this individual provider in the NPPES registry on November 30, 2005.
Where is Carlos Collin located?
Carlos Collin practices at 14901 Broschart Rd, Rockville, MD 20850. The listed phone number is (703) 698-5220.
What is Carlos Collin's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Carlos Collin enrolled in Medicare?
Yes. Carlos Collin is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Carlos Collin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Carlos Collin reassigns Medicare benefits to 9 organizations: Northern Virginia Psychiatric Group (Fairfax, VA), Crestwood Healthcare LP (Huntsville, AL), Mercy Harvard Hospital Inc (Harvard, IL), Mercy Health System Corporation (Lake Geneva, WI), Rockford Health Physicians (Rockford, IL) and 4 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Carlos Collin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Carlos Collin was last updated on April 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Carlos Collin, MD · NPI 1609850171
Psychiatry physician in Rockville, Maryland. Individual provider, active in the CMS NPPES registry since November 30, 2005.
## Identity
- **NPI:** 1609850171 (Entity type: Individual)
- **Enumerated:** November 30, 2005
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** D0058156 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 14901 BROSCHART RD, Rockville, MD 20850-3318
- **Phone:** (703) 698-5220 · **Fax:** (703) 573-2351
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 9 organizations under Medicare reassignment (form CMS-855R): Northern Virginia Psychiatric Group (NPI 1396786141, Fairfax, VA); Crestwood Healthcare LP (NPI 1023061496, Huntsville, AL); Mercy Harvard Hospital Inc (NPI 1427001445, Harvard, IL); Mercy Health System Corporation (NPI 1699728550, Lake Geneva, WI); Rockford Health Physicians (NPI 1043242886, Rockford, IL); and 4 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1980
## Record status
- **NPPES last updated:** April 21, 2026
- **Other identifiers:** Other 3137599; Medicaid 407682600 (MD); Other 710036; and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1609850171) · Data from the CMS NPPES public registry.