HASSAN MAHMOUD M.D.
NPI 1720440712
Internal Medicine - Nephrology in Portland, ME

Active since March 28, 2016PECOS EnrolledAccepts Medicare Assignment
98.06/100
CMS Quality Rating
1600 CONGRESS ST STE B, PORTLAND, ME 04102(207) 774-5222 Get Directions Write a Review

NPPES record last updated: June 16, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jun 16, 2021, Nov 21, 2019, Mar 28, 2016 (3 updates tracked since 2016).

About Hassan Mahmoud M.d. NPPES

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

HASSAN MAHMOUD M.D. (NPI 1720440712) is an individual nephrology provider in Portland, Maine, licensed in Maine (MD24603) and active in the NPI registry since March 2016. He is enrolled in Medicare PECOS, is affiliated with Maine Medical Center, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1720440712
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameHASSAN MAHMOUDCredential: M.D.
Location Address1600 CONGRESS ST STE BPortland, ME 04102-2148
Mailing Address1600 Congress St Ste BPortland, ME 04102-2148 · (207) 774-5222
Sole ProprietorNo
Medical School CMSOtherGraduated 2011
Enumeration DateMarch 28, 2016
Last NPPES UpdateJune 16, 20213 updates tracked since enumeration
NPPES CertifiedJune 16, 2021
NPI 1720440712 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License Licensed in ME · MD24603
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
1600 CONGRESS ST STE B, Portland, ME 04102

Secondary Practice Locations 2

Location 122 Bramhall StPortland, ME 04102-3134 · Phone (207) 662-0111
Location 2800 Harrison AveBoston, MA 02118-2905 · Phone (617) 638-7361

Accepted 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

Hassan Mahmoud M.d. 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 ID1254629827
PECOS Enrollment IDI20210804003584
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.
103 services80 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.
62 services43 patients
Hemodialysis procedure with physician evaluation 90935
Hemodialysis is a treatment that uses a machine to filter waste and excess fluid from your blood when your kidneys can't. A physician checks your health before, during, and after the procedure to ensure it's working effectively for you.
54 services30 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
54 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.
32 services31 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.
18 services18 patients

Hospital Affiliations CMS Care Compare

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

Maine Medical Center

Acute Care Hospitals · Portland, ME
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number200009
Location22 Bramhall StPortland, ME 04102 · Cumberland County
Emergency services Birthing friendly

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
$128.83 typical visit price
range $56.28 – $169.96
Typical copayment $32.20 (range $14.07 – $42.49)
Most-billed visit code 99204
Established Patient
$99.18 typical visit price
range $18.22 – $138.92
Typical copayment $24.79 (range $4.55 – $34.73)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

98.06/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality86.13
Promoting Interoperability100
Improvement Activities40

Referred Medical Equipment & Supplies CMS DME claims 9

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Azathioprine, oral, 50 mg J7500
Treatment-Treatment - Miscellaneous · category RX029N
3 suppliers19 claims1,350 services$1.59 avg. paid by Medicare
Cyclosporine, oral, 100 mg J7502
Treatment-Treatment - Miscellaneous · category RX029N
4 suppliers14 claims720 services$1.53 avg. paid by Medicare
Tacrolimus, immediate release, oral, 1 mg J7507
Treatment-Treatment - Miscellaneous · category RX029N
7 suppliers313 claims27,990 services$0.29 avg. paid by Medicare
Prednisone, immediate release or delayed release, oral, 1 mg J7512
Treatment-Treatment - Miscellaneous · category RX029N
5 suppliers209 claims36,300 services$0.01 avg. paid by Medicare
Cyclosporine, oral, 25 mg J7515
Treatment-Treatment - Miscellaneous · category RX029N
3 suppliers14 claims1,020 services$0.55 avg. paid by Medicare
Mycophenolate mofetil, oral, 250 mg J7517
Treatment-Treatment - Miscellaneous · category RX029N
4 suppliers111 claims17,084 services$0.18 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 13

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

Internal Medicine (Nephrology)
1600 CONGRESS ST STE B
PORTLAND, ME 04102
Dietitian, Registered
1600 CONGRESS ST STE B
PORTLAND, ME 04102
Internal Medicine (Nephrology)
1600 CONGRESS ST STE B
PORTLAND, ME 04102
Physician Assistant
1600 CONGRESS ST STE B
PORTLAND, ME 04102
Physician Assistant
1600 CONGRESS ST STE B
PORTLAND, ME 04102
Internal Medicine (Nephrology)
1600 CONGRESS ST STE B
PORTLAND, ME 04102
Nurse Practitioner (Acute Care)
1600 CONGRESS ST STE B
PORTLAND, ME 04102
Nurse Practitioner (Acute Care)
1600 CONGRESS ST STE B
PORTLAND, ME 04102

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 Hassan Mahmoud's NPI number?

The NPI number for Hassan Mahmoud is 1720440712. It was assigned to this individual provider in the NPPES registry on March 28, 2016.

Where is Hassan Mahmoud located?

Hassan Mahmoud practices at 1600 Congress St Ste B, Portland, ME 04102. The listed phone number is (207) 774-5222.

What is Hassan Mahmoud's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Hassan Mahmoud enrolled in Medicare?

Yes. Hassan Mahmoud 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 Hassan Mahmoud accept?

Health plans from Anthem Blue Cross and Blue Shield and Harvard Pilgrim Health Care list Hassan Mahmoud 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 Hassan Mahmoud affiliated with any hospitals?

According to CMS data, Hassan Mahmoud is affiliated with Maine Medical Center.

When was this NPI record last updated?

The NPPES record for Hassan Mahmoud was last updated on June 16, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.