Dr. Philip Hemmers, DO

  • Norwalk, CT
  • Allergist and immunologist
NPI1386700854PAC ID5294724068
Medicare services, 2024
3,907
Medicare patients, 2024
145
Part D claims, 2024
778
Industry payments
$6,548
Affiliated sites
3
Practice address
761 Main Ave, Norwalk, CT 06851
Practice phone
Call (203) 750-7400
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Illume Fertility

Surgery Center - Not Medicare-Certified · Norwalk, Connecticut

See all 5 affiliations

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Dr. Philip Hemmers is an allergist and immunologist in Norwalk, Connecticut

Dr. Hemmers practices at Illume Fertility in Norwalk, Connecticut.

Dr. Hemmers' NPI, 1386700854, was assigned on December 29, 2006. Dr. Hemmers graduated from New York Institute of Technology College of Osteopathic Medicine - Old Westbury in 2001. Dr. Hemmers holds Connecticut license 044867.

NPI and contact details
Medicare PAC ID
5294724068
NPI enumeration date
December 29, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(203) 750-7400
Professional email
Get email
Personal email
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Mobile number
Get number
Sex
Male
Estimated age
51
Medical school graduation
2001

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Philip Hemmers practices at Illume Fertility in Norwalk, Connecticut

Dr. Hemmers' primary practice is Illume Fertility, at 761 Main Ave, Norwalk, CT 06851. The practice phone is (203) 750-7400.

  • Illume Fertility
    761 Main Ave, Norwalk, CT 06851Phone(203) 750-7400

Source: Dmand AI Affiliation Data

Dr. Philip Hemmers is affiliated with 3 sites of care and 2 medical groups

Dr. Hemmers' primary practice is Illume Fertility in Norwalk, Connecticut. The medical group on file is Allergy Center of Connecticut. Dmand AI also links Dr. Hemmers to 2 more group practices and clinics and 1 medical group, each named with a free account.

See all 5 affiliations for Dr. Hemmers

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

Dmand AI tracks the EHR system at Dr. Philip Hemmers' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hemmers practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Illume FertilityAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Philip Hemmers is one of 51 allergists and immunologists in Connecticut

Allergy and immunology is Dr. Hemmers' primary specialty in the NPI Registry, under taxonomy code 207K00000X. Dr. Hemmers is board certified in allergy & immunology by the American Board of Allergy and Immunology. Dr. Hemmers is licensed in Connecticut.

Specialties and state licenses

  • Allergy and immunology, ConnecticutPrimaryLicense 044867 · taxonomy 207K00000X

Clinical focus

Dmand AI lists acute sinusitis, asthma, chronic nasal allergies, hives and upper respiratory infection (URI) among the conditions Dr. Hemmers treats.

Allergists and immunologists near Dr. Hemmers

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

51allergists and immunologists in Connecticut
5allergists and immunologists in Norwalk

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

Dr. Philip Hemmers billed Medicare for 3,907 services in 2024

CMS data shows 3,907 Medicare services from Dr. Hemmers across 6 procedure codes in 2024, for 145 Medicare patients. Medicare paid $38,725 for them. Every service was in an office.

Medicare services, 20243,907
Medicare patients145
Paid by Medicare$38,725
Procedure codes6

Dr. Hemmers' Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Tests and treatments
2023: 3,2482024: 3,67913%
Office and hospital visits
2023: 1842024: 22824%

Dr. Hemmers compared with the Connecticut median for allergists and immunologists, 2024

  • Dr. Hemmers
  • Connecticut median
Medicare services
3,907vs 8384.7 times
Medicare patients
145vs 8669% above
Part D claims
658vs 1554.2 times

Medians across 50 allergists and immunologists in Connecticut with Dmand AI profiles that report each measure.

Dr. Hemmers' 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. Hemmers

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

Dr. Philip Hemmers treated 145 Medicare patients in 2024, average age 70

CMS counts 145 Medicare patients who saw Dr. Hemmers in 2024. The largest group is 65 to 74, with 63 patients. 75% of them have high cholesterol, and 63% have high blood pressure. 29% are also on Medicaid. Their average risk score is 0.95, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Hemmers' median patient age at 29, with 55% women.

Medicare patients, 2024145
Average age70
Average risk score0.95
Also on Medicaid29%

Dr. Hemmers' Medicare patients by age, 2024

Dr. Hemmers' Medicare patients by sex, 2024

  • Women10874%
  • Men3726%

Chronic conditions among Dr. Hemmers' Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure63%
  3. Arthritis49%
  4. Anxiety37%
  5. Asthma37%
  6. Diabetes21%
  7. Ischemic heart disease21%
  8. Mood disorders21%

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

Dr. Hemmers' patients across all payers

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

Patient panel by age, all payers

Median age 29

Patient panel by sex, all payers

  • Women55%
  • Men43%

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

Dr. Philip Hemmers wrote 778 Medicare Part D claims in 2024

In 2024, Dr. Hemmers wrote 778 Medicare Part D claims for 184 patients. 65% of them were for generic drugs. CMS names the drug for 658 of them, across 19 drugs with 11 or more claims each, at $212,495 in total drug cost. In 2023, CMS named 487 claims across 11 drugs.

Part D claims, 2024778
Drugs named by CMS19
Total drug cost$212,495
Part D patients184

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

  • Generic507 claims65%
  • Brand-name271 claims35%

Dr. Hemmers' 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: 4872024: 65835%

Drugs named by CMS: 19 in 2024, 11 in 2023.

See all prescribing by Dr. Hemmers

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

How Dr. Philip Hemmers takes part in Medicare

Dr. Hemmers accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Philip Hemmers received $6,548 in industry payments from 2016 to 2025

CMS Open Payments shows 43 general payments to Dr. Hemmers from 11 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 83% of the total. Mylan Inc. paid the most, $5,921.

General payments to Dr. Hemmers by program year, 2016 to 2025

General payments to Dr. Hemmers by kind, 2016 to 2025

$6.5Kin total
  • Speaker and faculty fees$5,46083%
  • Food and beverage$82513%
  • Honoraria$1753%
  • Travel and lodging$721%
  • Education$150%

Companies that paid Dr. Hemmers the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Hemmers

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Philip Hemmers has 3 awards and honors on record

Dmand AI lists 3 awards for Dr. Hemmers, most recently Greenwich Magazine in 2014.

Awards and honors for Dr. Hemmers

  1. 2014
    • Greenwich Magazine
    • Top Doctors: New York Metro Area
  2. Undated
    • AAAAI Fellow

Source: Dmand AI Professional Profile Data

Dr. Philip Hemmers graduated from New York Institute of Technology College of Osteopathic Medicine - Old Westbury

Dr. Hemmers graduated from New York Institute of Technology College of Osteopathic Medicine - Old Westbury in 2001. Dr. Hemmers is a member of AAAAI.

  1. Medical schoolNew York Institute of Technology College of Osteopathic Medicine - Old Westbury
  2. Board certified in allergy & immunologyAmerican Board of Allergy and Immunology
  3. Board certified in 2006 - 2026CT State License
  4. Board certified in 2002 - 2020NY State License

Source: Dmand AI Professional Profile Data

Dr. Philip Hemmers accepts plans from 15 insurance carriers

Dr. Hemmers is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Cigna
  • Elevance
  • HCSC
  • Aspirus Health Plan
  • Blue Cross Blue Shield of Massachusetts
  • +7 more carriersWith a free account

Plan types Dr. Hemmers accepts, by number of carriers

  1. PPO10
  2. HMO8
  3. Medicare8
  4. EPO4
  5. POS4

Source: Dmand AI Insurance Network Data

Sources for Dr. Philip Hemmers'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)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
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. Philip Hemmers

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. Philip Hemmers' NPI number?

Dr. Philip Hemmers' NPI number is 1386700854. It was assigned on December 29, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Philip Hemmers?

Dr. Philip Hemmers is an allergist and immunologist in Norwalk, Connecticut. The primary specialty in the NPI Registry is Allergy & Immunology Physician (taxonomy code 207K00000X).

Where does Dr. Philip Hemmers practice?

Dr. Hemmers practices at 761 Main Ave, Norwalk, CT 06851. Dr. Hemmers' primary practice is Illume Fertility in Norwalk, Connecticut. Dmand AI also links Dr. Hemmers to 2 group practices and clinics and 1 medical group.

What is Dr. Philip Hemmers' office phone number?

The practice phone on file for Dr. Hemmers is (203) 750-7400.

What is Dr. Philip Hemmers' medical license number?

Dr. Hemmers holds Connecticut license 044867.

What medical group is Dr. Philip Hemmers part of?

Dr. Hemmers is linked to Allergy Center of Connecticut. Dmand AI links Dr. Hemmers to 1 more medical group.

Does Dr. Philip Hemmers accept Medicare?

Yes. CMS data shows Dr. Hemmers billed Medicare for 3,907 services in 2024, and Dr. Hemmers accepts Medicare assignment.

How many Medicare patients does Dr. Philip Hemmers see?

CMS counts 145 Medicare patients who saw Dr. Hemmers in 2024, with an average age of 70.

Is Dr. Philip Hemmers board certified?

Yes. Dr. Hemmers is board certified in allergy & immunology by the American Board of Allergy and Immunology.

What services does Dr. Philip Hemmers bill to Medicare?

In 2024, Dr. Hemmers' most billed Medicare services were allergy test or treatment (95004), allergy test or treatment (95165) and allergy test or treatment (95117).

Show 5 more questionsShow fewer questions

Where did Dr. Philip Hemmers go to medical school?

Dr. Hemmers graduated from New York Institute of Technology College of Osteopathic Medicine - Old Westbury in 2001.

What drugs does Dr. Philip Hemmers prescribe most?

In 2024 Medicare Part D data, Dr. Hemmers' most prescribed drugs by claims were Azelastine HCl, Montelukast Sodium and Fluticasone Propionate.

Has Dr. Philip Hemmers received payments from drug or device companies?

CMS Open Payments shows $6,548 in general payments to Dr. Hemmers from 11 companies from 2016 to 2025. The largest total came from Mylan Inc.

How long has Dr. Philip Hemmers been practicing?

Dr. Hemmers graduated from medical school in 2001, 25 years ago.

What insurance does Dr. Philip Hemmers accept?

Dr. Hemmers is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.

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