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ZACHARY P MUELLER DO
NPI 1801232608
Hospitalist in Portland, ME

Active since May 20, 2013PECOS EnrolledAccepts Medicare Assignment
83.95/100
CMS Quality Rating
22 BRAMHALL ST, PORTLAND, ME 04102(207) 662-4618(207) 662-6254 Get Directions Write a Review

NPPES record last updated: March 30, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Mar 30, 2026, Mar 5, 2026, Aug 10, 2016 (3 updates tracked since 2016).

About Zachary P Mueller Do NPPES

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

ZACHARY P MUELLER DO (NPI 1801232608) is an individual hospitalist provider in Portland, Maine, licensed in Maine (DO2636) and active in the NPI registry since May 2013. He is enrolled in Medicare PECOS, is affiliated with Central Maine Medical Center, and maintains 5 additional practice locations.

NPPES Registry Identity

NPI1801232608
Entity TypeIndividualMale
Primary Taxonomy208M00000X
Provider Legal NameZACHARY P MUELLERCredential: DO
Location Address22 BRAMHALL STPortland, ME 04102-3134
Mailing Address22 Bramhall StPortland, ME 04102-3134 · (207) 662-4618 · Fax (207) 662-6254
Phone(207) 662-4618
Fax(207) 662-6254
Sole ProprietorNo
Medical School CMSUniversity Of New England, College Of Osteo MedicineGraduated 2013
Enumeration DateMay 20, 2013
Last NPPES UpdateMarch 30, 20263 updates tracked since enumeration
NPPES CertifiedMarch 30, 2026
✔ NPI 1801232608 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License✔ Licensed in ME · DO2636
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
Also ListedInternal MedicineTaxonomy 207R00000X · License DO2636 (ME)
22 BRAMHALL ST, Portland, ME 04102
Open in Google Maps ↗

Secondary Practice Locations 5

Location 1118 Northport AveBelfast, ME 04915-6009 · Phone (207) 338-2500 · Fax (207) 505-4590
Location 26 Glen Cove DrRockport, ME 04856-4272 · Phone (207) 301-8542 · Fax (207) 301-5277
Location 3300 Main StLewiston, ME 04240-7027 · Phone (207) 795-7575 · Fax (207) 795-7133
Location 425 June StSanford, ME 04073-2621 · Phone (207) 324-4310 · Fax (207) 490-7999
Location 51 Medical Center DrBiddeford, ME 04005-9422 · Phone (207) 283-7937 · Fax (207) 283-7018

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

Zachary P Mueller 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 ID9133361520
PECOS Enrollment IDI20161102002380
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 7

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.

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.
156 services86 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.
67 services50 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
62 services59 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
61 services61 patients
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309
A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.
20 services14 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.
16 services12 patients

Hospital Affiliations CMS Care Compare 2

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

Central Maine Medical Center

Acute Care Hospitals · Lewiston, ME
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number200024
Location300 Main StreetLewiston, ME 04240 · Androscoggin County
Emergency services Birthing friendly

Bridgton Hospital

Critical Access Hospitals · Bridgton, ME
OwnershipVoluntary non-profit - Private
CMS Certification Number201310
Location10 Hospital DriveBridgton, ME 04009 · Cumberland County
Emergency services

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.

83.95/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality60.69
Promoting Interoperability98
Improvement Activities40
Cost70.81

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.

ABBY LYNN LABRECQUE PA-C
Physician Assistant (Medical)
22 BRAMHALL ST
PORTLAND, ME 04102
Cumberland County (207) 662-8111
TEGAN SWIFT RD
Dietitian, Registered
22 BRAMHALL ST
PORTLAND, ME 04102
Cumberland County (207) 662-4238
DEREK POULIN DO
Anesthesiology
22 BRAMHALL ST
PORTLAND, ME 04102
Cumberland County (207) 662-2526
MATTHEW SCOTT AUSTIN CRNA
Nurse Anesthetist, Certified Registered
22 BRAMHALL ST
PORTLAND, ME 04102
Cumberland County (207) 662-2526
MADELINE YOUNGBERG MD
Internal Medicine
22 BRAMHALL ST
PORTLAND, ME 04102
Cumberland County (207) 662-0111
ERICA BRASLEY MD
Student in an Organized Health Care Education/Training Program
22 BRAMHALL ST
PORTLAND, ME 04102
Cumberland County (207) 662-0111
REBECCA ROSE LIGHTMAN
Internal Medicine
22 BRAMHALL ST
PORTLAND, ME 04102
Cumberland County (207) 662-7060
DR. LUKE PATRICK KEFFER MD, MBA
Student in an Organized Health Care Education/Training Program
22 BRAMHALL ST
PORTLAND, ME 04102
Cumberland County (207) 662-0111

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 Zachary Mueller's NPI number?

The NPI number for Zachary Mueller is 1801232608. It was assigned to this individual provider in the NPPES registry on May 20, 2013.

Where is Zachary Mueller located?

Zachary Mueller practices at 22 Bramhall St, Portland, ME 04102. The listed phone number is (207) 662-4618.

What is Zachary Mueller's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Zachary Mueller enrolled in Medicare?

Yes. Zachary Mueller 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.

Is Zachary Mueller affiliated with any hospitals?

According to CMS data, Zachary Mueller is affiliated with Central Maine Medical Center and Bridgton Hospital.

When was this NPI record last updated?

The NPPES record for Zachary Mueller was last updated on March 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.