What is Liisa Field's NPI number?

Liisa Field's National Provider Identifier (NPI) is 1215921911, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Liisa Field's specialty?

Liisa Field is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).

Where is Liisa Field located?

Liisa Field's practice location on file with NPPES is 493 Blackwell Rd Ste 202, Warrenton, VA 20186-2689.

What is Liisa Field's phone number?

The practice phone number listed in the NPPES registry for Liisa Field is (540) 347-4400.

Does Liisa Field accept Medicare?

Liisa Field is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Liisa Field's NPI active?

Yes — Liisa Field's NPI (1215921911) is active in the NPPES registry as of the last update on 2026-04-08.

IndividualActiveAccepts Medicare

Liisa Field, PA-C

NPI 1215921911 · Physician Assistant · Warrenton, VA

Liisa Field, PA-C is a Physician Assistant provider in Warrenton, VA (NPI 1215921911).

Provider details

NPI number: 1215921911
Entity type: Individual
Primary specialty: Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Credential: PA-C
Sex: Female
Sole proprietor: No
License: 0110006233 (VA)

Practice location

493 Blackwell Rd Ste 202

Warrenton, VA 20186-2689

Phone: (540) 347-4400

Street-level locationGet directions

More VA providers

Mailing address

Po Box 748613

Atlanta, GA 30374-8613

Specialties & taxonomies

Physician AssistantPrimary363A00000XLicense 0110006233 (VA)
Physician Assistants & Advanced Practice Nursing Providers
Medical Physician Assistant363AM0700XLicense 0110006233 (VA)
Physician Assistants & Advanced Practice Nursing Providers

Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Detailed profile(93/100 index)

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

Registry tenure28% of score
21 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
1 documented practice location
Medicare service volume (vs. specialty peers)28% of score
1,317 Medicare services, 2024 (ranked within specialty)

Medicare volume is ranked against active providers in the same specialty. 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.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349	226	$104
Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309	224	$88
Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308	141	$61
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	139	$105
Subsequent Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, at Least 45 Minutes99310	99	$125
Insertion of Needle Into Vein for Collection of Blood Sample

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 75 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Gabapentin	234	41
Atorvastatin Calcium	190	71
Furosemide	122	40
Escitalopram Oxalate	109	29
Sertraline Hcl	108	21
Levothyroxine Sodium	108	41
Amlodipine Besylate	99

Enumerated: 2005-09-08
Last updated: 2026-04-08
Certified: 2026-04-08

Frequently asked questions

What is Liisa Field's NPI number?: Liisa Field's National Provider Identifier (NPI) is 1215921911, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Liisa Field's specialty?: Liisa Field is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
Where is Liisa Field located?: Liisa Field's practice location on file with NPPES is 493 Blackwell Rd Ste 202, Warrenton, VA 20186-2689.
What is Liisa Field's phone number?: The practice phone number listed in the NPPES registry for Liisa Field is (540) 347-4400.
Does Liisa Field accept Medicare?: Liisa Field is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Liisa Field's NPI active?: Yes — Liisa Field's NPI (1215921911) is active in the NPPES registry as of the last update on 2026-04-08.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349	226	$104
Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309	224	$88
Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308	141	$61
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	139	$105
Subsequent Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, at Least 45 Minutes99310	99	$125
Insertion of Needle Into Vein for Collection of Blood Sample