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CATHERINE MICHELLE TESKIN DO
NPI 1770089112
Internal Medicine - Rheumatology in Newark, DE

Active since April 04, 2018PECOS EnrolledAccepts Medicare Assignment
CHRISTIANA HOSPITAL 4755 OGLETOWN-STANTON RD, NEWARK, DE 19718(302) 320-4411 Get Directions Write a Review

NPPES record last updated: May 19, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

About Catherine Michelle Teskin Do NPPES

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

CATHERINE MICHELLE TESKIN DO (NPI 1770089112) is an individual rheumatology provider in Newark, Delaware, licensed in Delaware (C2-0024337) and active in the NPI registry since April 2018. She is enrolled in Medicare PECOS, is affiliated with Union Hospital Of Cecil County, and maintains a secondary practice location in Wilmington.

NPPES Registry Identity

NPI1770089112
Entity TypeIndividualFemale
Primary Taxonomy207RR0500X
Provider Legal NameCATHERINE MICHELLE TESKINCredential: DO
Location AddressCHRISTIANA HOSPITAL 4755 OGLETOWN-STANTON RDNewark, DE 19718-0001
Mailing Address501 W 14th StWilmington, DE 19801-1013 · (302) 320-4411
Phone(302) 320-4411
Sole ProprietorNo
Medical School CMSEdward Via Col Of Osteo Medicine-virginia CampusGraduated 2018
Enumeration DateApril 4, 2018
Last NPPES UpdateMay 19, 2026
NPPES CertifiedMay 19, 2026
✔ NPI 1770089112 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License✔ Licensed in DE · C2-0024337
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
CHRISTIANA HOSPITAL 4755 OGLETOWN-STANTON RD, Newark, DE 19718
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Secondary Practice Location 1

Location 1501 W 14th StWilmington, DE 19801-1013 · Phone (302) 320-4411

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include AmeriHealth Caritas Next, Highmark Blue Cross Blue Shield Delaware.Insurance ›

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

Catherine Michelle Teskin Do 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 ID8325394026
PECOS Enrollment IDI20230816003319
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.

Areas of Expertise CMS Part B claims 9

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
163 services93 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
71 services58 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
56 services56 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
27 services20 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.
25 services25 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
22 services22 patients

Hospital Affiliations CMS Care Compare

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

Union Hospital Of Cecil County

Acute Care Hospitals · Elkton, MD
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210032
Location106 Bow StreetElkton, MD 21921 · Cecil County
Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19718 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
$131.15 typical visit price
range $57.12 – $173.08
Typical copayment $32.78 (range $14.28 – $43.27)
Most-billed visit code 99204
Established Patient
$100.68 typical visit price
range $18.36 – $141.05
Typical copayment $25.17 (range $4.59 – $35.26)
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 Catherine Teskin's NPI number?

The NPI number for Catherine Teskin is 1770089112. It was assigned to this individual provider in the NPPES registry on April 4, 2018.

Where is Catherine Teskin located?

Catherine Teskin practices at Christiana Hospital 4755 Ogletown-Stanton Rd, Newark, DE 19718. The listed phone number is (302) 320-4411.

What is Catherine Teskin's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Catherine Teskin enrolled in Medicare?

Yes. Catherine Teskin 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.

What insurance does Catherine Teskin accept?

Health plans from AmeriHealth Caritas Next and Highmark Blue Cross Blue Shield Delaware list Catherine Teskin 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.

Is Catherine Teskin affiliated with any hospitals?

According to CMS data, Catherine Teskin is affiliated with Union Hospital Of Cecil County.

When was this NPI record last updated?

The NPPES record for Catherine Teskin was last updated on May 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.