ALISON FLENTJE
NPI 1407219397
Surgery - Vascular Surgery in Baltimore, MD

Active since March 30, 2016PECOS EnrolledAccepts Medicare Assignment
22 S GREENE ST, BALTIMORE, MD 21201(410) 328-5878 Get Directions Write a Review

NPPES record last updated: October 30, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Alison Flentje NPPES

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

ALISON FLENTJE (NPI 1407219397) is an individual vascular surgery provider in Baltimore, Maryland, licensed in Maryland (D0103874) and active in the NPI registry since March 2016. She is enrolled in Medicare PECOS, is affiliated with Saint Agnes Hospital, and is a graduate of Eastern Virginia Medical School (2016).

NPPES Registry Identity

NPI1407219397
Entity TypeIndividualFemale
Primary Taxonomy2086S0129X
Provider Legal NameALISON FLENTJE
Location Address22 S GREENE STBaltimore, MD 21201-1544
Mailing Address22 S Greene StBaltimore, MD 21201-1544 · (410) 328-5878
Sole ProprietorNo
Medical School CMSEastern Virginia Medical SchoolGraduated 2016
Enumeration DateMarch 30, 2016
Last NPPES UpdateOctober 30, 2025
NPPES CertifiedOctober 30, 2025
NPI 1407219397 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtySurgery · Vascular SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0129X
License Licensed in MD · D0103874
Definition
A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.
Also ListedSurgeryTaxonomy 208600000X · License D0103874 (MD)
22 S GREENE ST, Baltimore, MD 21201

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Alison Flentje 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.

PECOS PAC ID1557656881
PECOS Enrollment IDI20251112001792
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.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Saint Agnes Hospital

Acute Care Hospitals · Baltimore, MD
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number210011
Location900 Caton AvenueBaltimore, MD 21229 · Baltimore City County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21201 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
$94.08 typical visit price
range $60.73 – $183.44
Typical copayment $23.52 (range $15.18 – $45.86)
Most-billed visit code 99203
Established Patient
$75.47 typical visit price
range $19.60 – $149.17
Typical copayment $18.86 (range $4.90 – $37.29)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Internal Medicine
22 S GREENE ST
BALTIMORE, MD 21201
Student in an Organized Health Care Education/Training Program
22 S GREENE ST, MEDICINE, N3E09
BALTIMORE, MD 21201
Physician Assistant (Medical)
22 S GREENE ST, G2K36
BALTIMORE, MD 21201
Pediatrics (Adolescent Medicine)
22 S GREENE ST
BALTIMORE, MD 21201
Nurse Practitioner (Acute Care)
22 S GREENE ST, SUITE S4D07
BALTIMORE, MD 21201
Student in an Organized Health Care Education/Training Program
22 S GREENE ST, N3E09
BALTIMORE, MD 21201
Internal Medicine
22 S GREENE ST
BALTIMORE, MD 21201
Internal Medicine
22 S GREENE ST, N3E09
BALTIMORE, MD 21201

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 Alison Flentje's NPI number?

The NPI number for Alison Flentje is 1407219397. It was assigned to this individual provider in the NPPES registry on March 30, 2016.

Where is Alison Flentje located?

Alison Flentje practices at 22 S Greene St, Baltimore, MD 21201. The listed phone number is (410) 328-5878.

What is Alison Flentje's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Vascular Surgery, with taxonomy code 2086S0129X.

Is Alison Flentje enrolled in Medicare?

Yes. Alison Flentje 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.

Is Alison Flentje affiliated with any hospitals?

According to CMS data, Alison Flentje is affiliated with Saint Agnes Hospital.

When was this NPI record last updated?

The NPPES record for Alison Flentje was last updated on October 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.