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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MATTHEW K FOLSTEIN MD
NPI 1952536674
Surgery in Berlin, MD

Active since May 26, 2009PECOS EnrolledAccepts Medicare Assignment
10231 OLD OCEAN CITY BLVD STE 207, BERLIN, MD 21811(410) 641-9568(410) 641-1006 Get Directions Write a Review

NPPES record last updated: August 5, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 5, 2026, Apr 30, 2026, Mar 30, 2026 and 4 more (7 updates tracked since 2019).

About Matthew K Folstein Md NPPES

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

MATTHEW K FOLSTEIN MD (NPI 1952536674) is an individual surgery provider in Berlin, Maryland, licensed in Maryland (D0071433) and active in the NPI registry since May 2009. He is enrolled in Medicare PECOS, is affiliated with Saint Joseph Regional Medical Center, and is a graduate of University Of Maryland School Of Medicine (2009).

NPPES Registry Identity

NPI1952536674
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameMATTHEW K FOLSTEINCredential: MD
Location Address10231 OLD OCEAN CITY BLVD STE 207Berlin, MD 21811-3568
Mailing Address10231 Old Ocean City Blvd Ste 207Berlin, MD 21811-3568 · (410) 641-9568
Phone(410) 641-9568
Fax(410) 641-1006
Sole ProprietorNo
Medical School CMSUniversity Of Maryland School Of MedicineGraduated 2009
Enumeration DateMay 26, 2009
Last NPPES UpdateAugust 5, 20267 updates tracked since enumeration
NPPES CertifiedAugust 5, 2026
✔ NPI 1952536674 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
Licenses✔ Licensed in MD · D0071433✔ Licensed in IN · 01074919A✔ Licensed in IN · 01074919
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
10231 OLD OCEAN CITY BLVD STE 207, Berlin, MD 21811
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Other Identifiers 2

Medicaid201308490IN
Medicaid7101141530KY

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource.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

Matthew K Folstein Md 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 ID8224342944
PECOS Enrollment IDI20150807014766
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 10

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.

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.
65 services65 patients
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.
27 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.
27 services27 patients
Creation of muscle graft to trunk 15734
The creation of a muscle graft to the trunk is a surgical procedure where healthy muscle tissue is moved from one part of the body to another. This helps to repair damaged areas, improve function, and enhance appearance. It's a common procedure in reconstructive surgery.
24 services12 patients
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.
22 services16 patients
Removal of gallbladder with x-ray study of bile ducts using an endoscope 47563
This procedure, known as an endoscopic retrograde cholangiopancreatography (ERCP), involves using a flexible camera (endoscope) to examine your bile ducts. If gallstones are found, your gallbladder may be removed in a separate procedure. This helps prevent future complications.
17 services17 patients

Hospital Affiliations CMS Care Compare

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

Saint Joseph Regional Medical Center

Acute Care Hospitals · Mishawaka, IN
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number150012
Location5215 Holy Cross PkwyMishawaka, IN 46545 · St. Joseph County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21811 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
$89.75 typical visit price
range $57.99 – $175.57
Typical copayment $22.43 (range $14.49 – $43.89)
Most-billed visit code 99203
Established Patient
$72.23 typical visit price
range $18.66 – $143.02
Typical copayment $18.05 (range $4.66 – $35.75)
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 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

TIDALHEALTH SPECIALTY CARE, LLC
Surgery
10231 OLD OCEAN CITY BLVD STE 207
BERLIN, MD 21811
Worcester County (410) 641-9568
ATLANTIC GENERAL HOSPITAL CORPORATION
Surgery
10231 OLD OCEAN CITY BLVD STE 207
BERLIN, MD 21811
Worcester County (410) 641-9568
TIDALHEALTH SPECIALTY CARE, LLC
Internal Medicine (Obesity Medicine)
10231 OLD OCEAN CITY BLVD STE 207
BERLIN, MD 21811
Worcester County (410) 641-9568

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 Matthew Folstein's NPI number?

The NPI number for Matthew Folstein is 1952536674. It was assigned to this individual provider in the NPPES registry on May 26, 2009.

Where is Matthew Folstein located?

Matthew Folstein practices at 10231 Old Ocean City Blvd Ste 207, Berlin, MD 21811. The listed phone number is (410) 641-9568.

What is Matthew Folstein's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Matthew Folstein enrolled in Medicare?

Yes. Matthew Folstein 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 Matthew Folstein accept?

Health plans from CareSource list Matthew Folstein 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 Matthew Folstein affiliated with any hospitals?

According to CMS data, Matthew Folstein is affiliated with Saint Joseph Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Matthew Folstein was last updated on August 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 days 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.