Dr. Peter J. Siekmeier, MD

  • Belmont, MA
  • Psychiatrist
NPI1477590156
Medicare services, 2024
156
Medicare patients, 2024
49
Part D claims, 2024
110
Publications
4
Hospital affiliations
1
Practice address
115 Mill Street, Belmont, MA 02478
Practice phone
Call (617) 855-3450
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

McLean Hospital

Hospital · Belmont, Massachusetts

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Dr. Peter J. Siekmeier is a psychiatrist in Belmont, Massachusetts

Dr. Siekmeier practices at McLean Hospital in Belmont, Massachusetts, part of Mass General Brigham.

Dr. Siekmeier's NPI, 1477590156, was assigned on June 1, 2006. Dr. Siekmeier holds Massachusetts license 158642.

NPI and contact details
NPI enumeration date
June 1, 2006
NPI status
Active
Practice phone
(617) 855-3450
Professional email
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Personal email
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Mobile number
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Sex
Male

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data

Dr. Peter J. Siekmeier practices at McLean Hospital in Belmont, Massachusetts

Dr. Siekmeier's primary practice is McLean Hospital, at 115 Mill Street, Belmont, MA 02478 in Middlesex County. The practice phone is (617) 855-3450.

  • McLean Hospital
    115 Mill Street, Belmont, MA 02478 · Middlesex CountyPhone(617) 855-3450

Source: Dmand AI Affiliation Data

Dr. Peter J. Siekmeier is affiliated with 1 site of care and 2 medical groups

Dr. Siekmeier's primary practice is McLean Hospital in Belmont, Massachusetts, part of Mass General Brigham. The medical group on file is McLean Hospital. Dmand AI also links Dr. Siekmeier to 1 more medical group, named with a free account. Dr. Siekmeier's employer is on file too: a hospital.

See all 3 affiliations for Dr. Siekmeier

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Peter J. Siekmeier's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Siekmeier practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
McLean HospitalAvailable with a free account
+1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Peter J. Siekmeier is one of 1,857 psychiatrists in Massachusetts

Psychiatry is Dr. Siekmeier's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Siekmeier is licensed in Massachusetts.

Specialties and state licenses

  • Psychiatry, MassachusettsPrimaryLicense 158642 · taxonomy 2084P0800X

Psychiatrists near Dr. Siekmeier

Counts of psychiatrists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Peter J. Siekmeier billed Medicare for 156 services in 2024

CMS data shows 156 Medicare services from Dr. Siekmeier across 1 procedure code in 2024, for 49 Medicare patients. Medicare paid $10,206 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024156
Medicare patients49
Paid by Medicare$10,206
Procedure codes1

Dr. Siekmeier's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 2242024: 15630%

Dr. Siekmeier compared with the Massachusetts median for psychiatrists, 2024

  • Dr. Siekmeier
  • Massachusetts median
Medicare services
156vs 1729% below
Medicare patients
49vs 4217% above
Part D claims
55vs 9240% below

Medians across 2,056 psychiatrists in Massachusetts with Dmand AI profiles that report each measure.

Dr. Siekmeier's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Siekmeier

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Peter J. Siekmeier treated 49 Medicare patients in 2024, average age 49

CMS counts 49 Medicare patients who saw Dr. Siekmeier in 2024. 75% of them have anxiety, and 75% have depression. 78% are also on Medicaid. Their average risk score is 1.03, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Siekmeier's median patient age at 44, with 67% women.

Medicare patients, 202449
Average age49
Average risk score1.03
Also on Medicaid78%

Dr. Siekmeier's Medicare patients by sex, 2024

  • Women2449%
  • Men2551%

Chronic conditions among Dr. Siekmeier's Medicare patients, 2024

  1. Anxiety75%
  2. Depression75%
  3. Mood disorders75%
  4. Schizophrenia and other psychoses75%
  5. Bipolar disorder71%
  6. Alcohol and drug use disorders55%
  7. PTSD55%
  8. High blood pressure51%

Share of Medicare patients with each condition. A patient can have several.

Dr. Siekmeier's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 44

Patient panel by sex, all payers

  • Women67%
  • Men33%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Peter J. Siekmeier wrote 110 Medicare Part D claims in 2024

In 2024, Dr. Siekmeier wrote 110 Medicare Part D claims. 99% of them were for generic drugs. CMS names the drug for 55 of them, across 4 drugs with 11 or more claims each, at $608 in total drug cost. In 2023, CMS named 37 claims across 3 drugs.

Part D claims, 2024110
Drugs named by CMS4
Total drug cost$608

Dr. Siekmeier's Part D claims by kind of drug, 2024

  • Generic109 claims99%
  • Brand-name and other1 claims1%

Dr. Siekmeier's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 372024: 5549%

Drugs named by CMS: 4 in 2024, 3 in 2023.

See all prescribing by Dr. Siekmeier

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

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Dr. Peter J. Siekmeier has 4 publications on record

Dmand AI links 4 papers to Dr. Siekmeier, published from 2006 to 2014. The most frequent topics are Schizophrenia, Hippocampus and Brain Mapping.

Papers4
Years published2006 to 2014

Dr. Siekmeier's papers by year, 2006 to 2014

Topics Dr. Siekmeier writes about most

  • Schizophrenia
  • Hippocampus
  • Brain Mapping
  • Computer Simulation
  • Electroencephalography
  • Models, Neurological
  • Neural Networks, Computer

Recent publications by Dr. Siekmeier

See all 4 publications and co-authors

See who Dr. Siekmeier researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Siekmeier works with, so you can find a warm path to the right psychiatrists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Sources for Dr. Peter J. Siekmeier's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Peter J. Siekmeier

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Peter J. Siekmeier's NPI number?

Dr. Peter J. Siekmeier's NPI number is 1477590156. It was assigned on June 1, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Peter J. Siekmeier?

Dr. Peter J. Siekmeier is a psychiatrist in Belmont, Massachusetts. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).

Where does Dr. Peter J. Siekmeier practice?

Dr. Siekmeier practices at 115 Mill Street, Belmont, MA 02478. Dr. Siekmeier's primary practice is McLean Hospital in Belmont, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Siekmeier to 1 medical group.

What is Dr. Peter J. Siekmeier's office phone number?

The practice phone on file for Dr. Siekmeier is (617) 855-3450.

What is Dr. Peter J. Siekmeier's medical license number?

Dr. Siekmeier holds Massachusetts license 158642.

Which hospitals is Dr. Peter J. Siekmeier affiliated with?

Dr. Siekmeier practices at McLean Hospital in Belmont, Massachusetts.

What medical group is Dr. Peter J. Siekmeier part of?

Dr. Siekmeier is linked to McLean Hospital. Dmand AI links Dr. Siekmeier to 1 more medical group.

Does Dr. Peter J. Siekmeier accept Medicare?

Yes. CMS data shows Dr. Siekmeier billed Medicare for 156 services in 2024.

How many Medicare patients does Dr. Peter J. Siekmeier see?

CMS counts 49 Medicare patients who saw Dr. Siekmeier in 2024, with an average age of 49.

What services does Dr. Peter J. Siekmeier bill to Medicare?

In 2024, Dr. Siekmeier's most billed Medicare services were hospital inpatient care (99232).

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What drugs does Dr. Peter J. Siekmeier prescribe most?

In 2024 Medicare Part D data, Dr. Siekmeier's most prescribed drugs by claims were Methylphenidate HCl, Trazodone HCl and Topiramate.

How long has Dr. Peter J. Siekmeier been practicing?

Dr. Siekmeier's NPI was assigned in 2006.

Does Dr. Peter J. Siekmeier do research?

Dmand AI links 4 publications to Dr. Siekmeier, published from 2006 to 2014.

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