What is Holly Zimmerli's NPI number?

Holly Zimmerli's National Provider Identifier (NPI) is 1033052121, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Holly Zimmerli's specialty?

Holly Zimmerli is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).

Where is Holly Zimmerli located?

Holly Zimmerli's practice location on file with NPPES is 7918 Jones Branch Dr Ste 600, Mc Lean, VA 22102-3307.

What is Holly Zimmerli's phone number?

The practice phone number listed in the NPPES registry for Holly Zimmerli is (703) 260-9978.

Is Holly Zimmerli's NPI active?

Yes — Holly Zimmerli's NPI (1033052121) is active in the NPPES registry as of the last update on 2026-04-13.

IndividualActive

Holly Zimmerli

NPI 1033052121 · Mental Health Counselor · Mc Lean, VA

Holly Zimmerli is a Mental Health Counselor provider in Mc Lean, VA (NPI 1033052121).

Provider details

NPI number: 1033052121
Entity type: Individual
Primary specialty: Mental Health CounselorBehavioral Health & Social Service Providers
Sex: Female
Sole proprietor: No

Specialties & taxonomies

Mental Health CounselorPrimary101YM0800X
Behavioral Health & Social Service Providers

Profile Score

Basic profile(46/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
Under 1 yr in registry
Profile completeness38% of score
83% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

7918 Jones Branch Dr Ste 600

Mc Lean, VA 22102-3307

Phone: (703) 260-9978

Street-level locationGet directions

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Mailing address