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ANNA NANIGIAN WITT M.D.
NPI 1770015042
Internal Medicine - Infectious Disease in Pittsburgh, PA

Active since March 28, 2017PECOS Enrolled
3601 5TH AVE, FALK CLINIC, SUITE 700, PITTSBURGH, PA 15213(412) 647-7228(501) 320-7792 Get Directions Write a Review

NPPES record last updated: June 30, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 20, 2020, Mar 28, 2017 (2 updates tracked since 2017).

About Anna Nanigian Witt M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ANNA NANIGIAN WITT M.D. (NPI 1770015042) is an individual infectious disease provider in Pittsburgh, Pennsylvania, licensed in Pennsylvania (480770) and active in the NPI registry since March 2017. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1770015042
Entity TypeIndividualFemale
Primary Taxonomy207RI0200X
Provider Legal NameANNA NANIGIAN WITTCredential: M.D.
Location Address3601 5TH AVE, FALK CLINIC, SUITE 700Pittsburgh, PA 15213-3403
Mailing Address2 Hot Metal St, Quantum One, Suite 001Pittsburgh, PA 15203-2348
Phone(412) 647-7228
Fax(501) 320-7792
Sole ProprietorNo
Enumeration DateMarch 28, 2017
Last NPPES UpdateJune 30, 20232 updates tracked since enumeration
NPPES CertifiedNovember 23, 2022
✔ NPI 1770015042 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
Licenses✔ Licensed in PA · 480770✔ Licensed in NM · MD2023-1056✔ Licensed in AL · 46361✔ Licensed in WV · 32549✔ Licensed in CA · A-167154✔ Licensed in OH · 35.147989✔ Licensed in AR · E-13020
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
3601 5TH AVE, FALK CLINIC, SUITE 700, Pittsburgh, PA 15213
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Kansas, Inc..Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Anna Nanigian Witt M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

4

Medicare enrollment records show Anna Witt reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

University Of Pittsburgh Physicians
0.1 mi
Internal Medicine
3500 5TH AVE, 4TH FLOOR
Pittsburgh, PA 15213
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 7,114 clinicians in this Medicare group
NPI 1548433527 (412) 682-2434
Wyoming County County Of Wyoming
183 mi
Public Health or Welfare
5362 MUNGERS MILL RD
Silver Springs, NY 14550
  • Reassigned Medicare billing, New York enrollment
  • Medicare enrollment name: Wyoming County
  • 76 clinicians in this Medicare group
NPI 1720115017 (585) 786-8890
Salina Regional Health Center, Inc.
946 mi
Family Medicine
2090 S OHIO ST
Salina, KS 67401
  • Reassigned Medicare billing, Kansas enrollment
  • 220 clinicians in this Medicare group
NPI 1508109299 (785) 825-8221
Multicare Health System
1,900 mi
Internal Medicine
15533 E BROADWAY AVE
Spokane Valley, WA 99037
  • Reassigned Medicare billing, Washington enrollment
  • 4,383 clinicians in this Medicare group
NPI 1336902345 (509) 530-4260

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
62 services38 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
38 services18 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
29 services26 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
22 services22 patients
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221
Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.
17 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 15213 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$126.34 typical visit price
range $54.64 – $166.87
Typical copayment $31.58 (range $13.66 – $41.71)
Most-billed visit code 99204
Established Patient
$96.82 typical visit price
range $17.33 – $135.84
Typical copayment $24.20 (range $4.33 – $33.96)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Anna Witt's NPI number?

The NPI number for Anna Witt is 1770015042. It was assigned to this individual provider in the NPPES registry on March 28, 2017.

Where is Anna Witt located?

Anna Witt practices at 3601 5th Ave, Falk Clinic, Suite 700, Pittsburgh, PA 15213. The listed phone number is (412) 647-7228.

What is Anna Witt's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Anna Witt enrolled in Medicare?

Yes. Anna Witt is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Anna Witt's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Anna Witt reassigns Medicare benefits to 4 organizations: University Of Pittsburgh Physicians (Pittsburgh, PA), Wyoming County County Of Wyoming (Silver Springs, NY), Salina Regional Health Center, Inc. (Salina, KS) and Multicare Health System (Spokane Valley, WA). 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 Anna Witt's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Anna Witt accept?

Health plans from Blue Cross and Blue Shield of Kansas, Inc. list Anna Witt as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Anna Witt was last updated on June 30, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.