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DR. GREGORY CHRISTOHPER FRECH MD
NPI 1265588552
Emergency Medicine in Baltimore, MD

Active since January 27, 2007PECOS EnrolledAccepts Medicare Assignment
MARBURG B186, 600 NORTH WOLF STREET, BALTIMORE, MD 21287(410) 955-2280 Get Directions Write a Review

NPPES record last updated: September 21, 2010. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Gregory Christohper Frech Md NPPES

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

DR. GREGORY CHRISTOHPER FRECH MD (NPI 1265588552) is an individual emergency medicine provider in Baltimore, Maryland, licensed in Utah (7046201-1205) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS, is affiliated with University Of Iowa Health Care Medical Center Down, and is a graduate of Eastern Virginia Medical School (2005).

NPPES Registry Identity

NPI1265588552
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. GREGORY CHRISTOHPER FRECHCredential: MD
Location AddressMARBURG B186, 600 NORTH WOLF STREETBaltimore, MD 21287-0001
Mailing Address1000 Fell St, Unit 427Baltimore, MD 21231-3529 · (410) 818-9586
Phone(410) 955-2280
Sole ProprietorYes
Medical School CMSEastern Virginia Medical SchoolGraduated 2005
Enumeration DateJanuary 27, 2007
Last NPPES UpdateSeptember 21, 2010
✔ NPI 1265588552 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in UT · 7046201-1205
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Also ListedGeneral Acute Care HospitalTaxonomy 282N00000X · License T4917 (MD)
MARBURG B186, Baltimore, MD 21287
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Gregory Christohper Frech 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 ID749349173
PECOS Enrollment IDI20160114000116
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

3

Medicare enrollment records show Gregory Frech reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Johnson County Emergency Medicine, Plc
803 mi
Emergency Medicine
500 E MARKET ST
Iowa City, IA 52245
  • Reassigned Medicare billing, Iowa enrollment
  • 55 clinicians in this Medicare group
NPI 1316582729 (817) 451-4208
Washington County Hospital
808 mi
Clinic/Center
400 E POLK ST
Washington, IA 52353
  • Reassigned Medicare billing, Iowa enrollment
  • 86 clinicians in this Medicare group
NPI 1215539952 (319) 653-5481
Linn County Emergency Medicine PC
812 mi
Emergency Medicine
701 10TH ST SE
Cedar Rapids, IA 52403
  • Reassigned Medicare billing, Iowa enrollment
  • 51 clinicians in this Medicare group
NPI 1679521124 (319) 398-6297

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 3

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.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
117 services114 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
36 services36 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
32 services31 patients

Hospital Affiliations CMS Care Compare 2

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

University Of Iowa Health Care Medical Center Down

Acute Care Hospitals · Iowa City, IA
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number160029
Location500 E Market StreetIowa City, IA 52245 · Johnson County
Emergency services Birthing friendly

Mercy Medical Center - Cedar Rapids

Acute Care Hospitals · Cedar Rapids, IA
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number160079
Location701 10th Street SECedar Rapids, IA 52403 · Linn County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21287 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
$106.59 typical visit price
range $19.60 – $149.17
Typical copayment $26.64 (range $4.90 – $37.29)
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 Gregory Frech's NPI number?

The NPI number for Gregory Frech is 1265588552. It was assigned to this individual provider in the NPPES registry on January 27, 2007.

Where is Gregory Frech located?

Gregory Frech practices at Marburg B186 600 North Wolf Street, Baltimore, MD 21287. The listed phone number is (410) 955-2280.

What is Gregory Frech's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Gregory Frech enrolled in Medicare?

Yes. Gregory Frech 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.

Which organizations bill Medicare for Gregory Frech's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Frech reassigns Medicare benefits to 3 organizations: Johnson County Emergency Medicine, Plc (Iowa City, IA), Washington County Hospital (Washington, IA) and Linn County Emergency Medicine PC (Cedar Rapids, IA). 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 Gregory Frech's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gregory Frech accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and Oscar Insurance Company and 1 other insurer list Gregory Frech 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 Gregory Frech affiliated with any hospitals?

According to CMS data, Gregory Frech is affiliated with University Of Iowa Health Care Medical Center Down and Mercy Medical Center - Cedar Rapids.

When was this NPI record last updated?

The NPPES record for Gregory Frech was last updated on September 21, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.