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ROBERT S KRAMER MD
NPI 1215036900
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Portland, ME

Active since September 21, 2006PECOS Enrolled
818 CONGRESS ST, PORTLAND, ME 04102(207) 773-8161(207) 773-1489 Get Directions Write a Review

NPPES record last updated: July 23, 2013. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Robert S Kramer Md NPPES

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

ROBERT S KRAMER MD (NPI 1215036900) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in Portland, Maine, licensed in Maine (MD10216) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1215036900
Entity TypeIndividualMale
Primary Taxonomy208G00000X
Provider Legal NameROBERT S KRAMERCredential: MD
Location Address818 CONGRESS STPortland, ME 04102-3112
Mailing Address301c Us Route OneScarborough, ME 04074 · (207) 396-8600 · Fax (207) 396-8632
Phone(207) 773-8161
Fax(207) 773-1489
Sole ProprietorNo
Enumeration DateSeptember 21, 2006
Last NPPES UpdateJuly 23, 2013
✔ NPI 1215036900 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyThoracic Surgery (Cardiothoracic Vascular Surgery)Allopathic & Osteopathic Physicians
Taxonomy Code208G00000X
License✔ Licensed in ME · MD10216
Definition
A thoracic surgeon provides the operative, perioperative and critical care of patients with pathologic conditions within the chest. Included is the surgical care of coronary artery disease, cancers of the lung, esophagus and chest wall, abnormalities of the trachea, abnormalities of the great vessels and heart valves, congenital anomalies, tumors of the mediastinum and diseases of the diaphragm. The management of the airway and injuries of the chest is within the scope of the specialty.
818 CONGRESS ST, Portland, ME 04102
Open in Google Maps ↗

Other Identifiers 3

Medicare PIN01512201ME
Medicare PIN01512202ME
Medicare UPINC66364

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Robert S Kramer Md 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

2

Medicare enrollment records show Robert Kramer reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Maine Medical Partners
Same address
Thoracic Surgery (Cardiothoracic Vascular Surgery)
818 CONGRESS ST
Portland, ME 04102
  • Reassigned Medicare billing, Maine enrollment
  • 264 clinicians in this Medicare group
NPI 1174897078 (207) 773-8161
Mainehealth
0.2 mi
Maternal & Fetal Medicine
887 CONGRESS ST, SUITE 200
Portland, ME 04102
  • Reassigned Medicare billing, Maine enrollment
  • 3,140 clinicians in this Medicare group
NPI 1063726891 (207) 771-5549

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 04102 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
$169.96 typical visit price
range $56.28 – $169.96
Typical copayment $42.49 (range $14.07 – $42.49)
Most-billed visit code 99205
Established Patient
$70.13 typical visit price
range $18.22 – $138.92
Typical copayment $17.53 (range $4.55 – $34.73)
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.

PATRICIA MAE WIELER NP
Nurse Practitioner (Acute Care)
818 CONGRESS ST
PORTLAND, ME 04102
Cumberland County (207) 773-8161
ADDISON LANDRY PA-C
Physician Assistant
818 CONGRESS ST
PORTLAND, ME 04102
Cumberland County (207) 773-8161
JUSTIN CLAIRE PA-C
Physician Assistant (Surgical)
818 CONGRESS ST
PORTLAND, ME 04102
Cumberland County (207) 773-8161
WIL DANIEL PALMER PA-C
Physician Assistant
818 CONGRESS ST
PORTLAND, ME 04102
Cumberland County (207) 773-8161
LEONARD V SHERWOOD PA-C
Physician Assistant (Surgical)
818 CONGRESS ST
PORTLAND, ME 04102
Cumberland County (207) 773-8161
CODY MAUCH
Physician Assistant (Surgical)
818 CONGRESS ST
PORTLAND, ME 04102
Cumberland County (207) 773-8161
LINDSAY ROSE HOULIHAN PA-C
Physician Assistant
818 CONGRESS ST
PORTLAND, ME 04102
Cumberland County (207) 773-8161
MRS. HANNAH ELIZABETH GEIGER ACNP
Nurse Practitioner (Acute Care)
818 CONGRESS ST
PORTLAND, ME 04102
Cumberland County (207) 773-8161

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 Robert Kramer's NPI number?

The NPI number for Robert Kramer is 1215036900. It was assigned to this individual provider in the NPPES registry on September 21, 2006.

Where is Robert Kramer located?

Robert Kramer practices at 818 Congress St, Portland, ME 04102. The listed phone number is (207) 773-8161.

What is Robert Kramer's specialty?

The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.

Is Robert Kramer enrolled in Medicare?

Yes. Robert Kramer is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Robert Kramer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Robert Kramer reassigns Medicare benefits to 2 organizations: Maine Medical Partners (Portland, ME) and Mainehealth (Portland, ME). 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 Robert Kramer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Robert Kramer was last updated on July 23, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.