Active NPI 1689660771 Individual Practitioner Male Practitioner

Dr. William Douglas Farmer , MD

Internal Medicine • Hamden, CT

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. William Farmer, MD is a certified Internal Medicine practicing in Hamden, CT. With approximately 30 years of clinical experience since graduating from Loma Linda University School Of Medicine in 1996, Dr. Farmer delivers high-quality medical care to the local community at 2447 WHITNEY AVE.

Dr. Farmer accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include established patient outpatient office visit, routine ekg using at least 12 leads including interpretation and report, test to measure expiratory airflow and volume. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

2447 Whitney Ave
Suite 2a

Hamden, CT 065183211

Telephone 2032305888

Fax 2032305889

Associated Practice Facility / Clinic

🏢 Kevin J. Hunt, Md,pc Facility NPI 1124131222

Medicare Profile & Education

Medical School

Loma Linda University School Of Medicine

Graduation Year

1996

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Hamden, CT

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

30 Yrs -0.5 yrs vs City Avg

City Avg: 30.5 Yrs

State Avg: 30.4 Yrs

Regional Practice Density

38 Specialists

Practicing in Hamden, CT (2753 Statewide)

Telehealth Adoption Rate

47.4% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

33.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Farmer (30 Years) 30 Yrs

Hamden Specialty Average (30.5 Years) 30.5 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	116	47	$225.00	$188.22
99213 Established patient office or other outpatient visit, typically 15 minutes	76	37	$120.00	$95.02
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	49	29	$170.00	$133.60
93000 Routine ekg using at least 12 leads including interpretation and report	19	15	$90.00	$15.05
94010 Test to measure expiratory airflow and volume	16	14	$75.00	$29.00
36415 Insertion of needle into vein for collection of blood sample	16	13	$25.00	$8.65

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	116	47	$225.00	$188.62
99213 Established patient office or other outpatient visit, typically 15 minutes	97	39	$120.00	$95.07
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	74	32	$170.00	$133.40
94010 Test to measure expiratory airflow and volume	21	17	$75.00	$29.01
93000 Routine ekg using at least 12 leads including interpretation and report	19	17	$90.00	$15.41
81002 Urinalysis, manual test	16	14	$15.00	$3.41

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	104	47	$225.00	$191.67
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	73	33	$170.00	$137.23
99213 Established patient office or other outpatient visit, typically 15 minutes	67	29	$120.00	$97.33
36415 Insertion of needle into vein for collection of blood sample	18	15	$25.00	$2.96
81002 Urinalysis, manual test	17	14	$15.00	$3.44
94010 Test to measure expiratory airflow and volume	13	12	$75.00	$29.60

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	91	43	$211.81	$195.23
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	76	37	$153.42	$135.80
99213 Established patient office or other outpatient visit, typically 15 minutes	46	27	$120.00	$96.27
36415 Insertion of needle into vein for collection of blood sample	19	12	$25.00	$3.00
94010 Test to measure expiratory airflow and volume	19	16	$75.00	$32.85
93000 Routine ekg using at least 12 leads including interpretation and report	18	15	$90.00	$16.13
81002 Urinalysis, manual test	16	14	$15.00	$3.48

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	108	45	$135.00	$117.61
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	60	33	$200.00	$158.12
99213 Established patient office or other outpatient visit, typically 15 minutes	39	25	$120.00	$81.58
36415 Insertion of needle into vein for collection of blood sample	24	19	$25.00	$2.99
81002 Urinalysis, manual test	19	19	$15.00	$3.46
93000 Routine ekg using at least 12 leads including interpretation and report	17	17	$90.00	$18.68
94010 Test to measure expiratory airflow and volume	17	16	$75.00	$39.53
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	13	13	$200.00	$124.97

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	150	45	$135.00	$116.60
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	53	30	$200.00	$155.97
99213 Established patient office or other outpatient visit, typically 15 minutes	27	17	$120.00	$79.87
93000 Routine ekg using at least 12 leads including interpretation and report	23	20	$90.00	$18.51
81002 Urinalysis, manual test	19	15	$15.00	$3.41
94010 Test to measure expiratory airflow and volume	19	16	$75.00	$39.04
36415 Insertion of needle into vein for collection of blood sample	19	15	$25.00	$2.94
G0008 Administration of influenza virus vaccine	18	18	$30.00	$17.96
90656 Vaccine for influenza for administration into muscle, 0.5 ml dosage	18	18	$35.00	$19.37
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	11	11	$200.00	$124.50

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	122	43	$135.00	$117.47
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	107	44	$200.00	$158.02
99213 Established patient office or other outpatient visit, typically 15 minutes	44	17	$120.00	$79.78
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	25	11	$75.00	$22.82
G0008 Administration of influenza virus vaccine	23	23	$30.00	$22.26
90656 Vaccine for influenza for administration into muscle, 0.5 ml dosage	23	23	$35.00	$19.37
81002 Urinalysis, manual test	19	17	$15.00	$3.41
93000 Routine ekg using at least 12 leads including interpretation and report	18	16	$90.00	$18.75
36415 Insertion of needle into vein for collection of blood sample	16	13	$25.00	$2.94
94010 Test to measure expiratory airflow and volume	14	13	$75.00	$40.48

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	127	52	$200.00	$150.24
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	110	46	$135.00	$111.84
93000 Routine ekg using at least 12 leads including interpretation and report	35	25	$90.00	$17.94
G0008 Administration of influenza virus vaccine	32	31	$30.00	$27.77
90656 Vaccine for influenza for administration into muscle, 0.5 ml dosage	31	30	$35.00	$18.76
81002 Urinalysis, manual test	23	21	$15.00	$3.43
94010 Test to measure expiratory airflow and volume	21	20	$75.00	$38.25
99213 Established patient office or other outpatient visit, typically 15 minutes	21	15	$120.00	$76.24
36415 Insertion of needle into vein for collection of blood sample	18	14	$25.00	$2.94
94060 Test to measure expiratory airflow and volume changes before and after medication administration	15	11	$105.00	$65.17
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	13	13	$200.00	$120.61

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License CT 038805

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Additional State Medicaid & Healthcare Payer Identifiers

Commercial Insurance / Payer ID Medicare Id

9800001901 (CT)

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

3 Associated Practitioners

Dr. Kevin Hunt , MD

Allergy & Immunology - Allergy

NPI 1225106867

Doctor of Medicine (M.D.)

Dr. Mark Rubenstein , DDS

Dentist - General Practice

NPI 1538467527

Doctor of Dental Surgery

Dr. Ernest Scarnati , MD

Radiology - Diagnostic Radiology

NPI 1689601528

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events

✅

NPI Profile Active October 02, 2013

NPI status registered as active in NPPES database

📍

Updated Practice Location October 02, 2013

Registered at 2447 WHITNEY AVE, SUITE 2A, HAMDEN, CT 065183211 (Tel: 2032305888)

📍

Updated Business Mailing Address October 02, 2013

Registered at 2447 WHITNEY AVE, SUITE 2A, HAMDEN, CT 065183211 (Tel: 2032305888)

👤

Provider Name / Credentials Updated October 02, 2013

Recorded as WILLIAM FARMER, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) October 02, 2013

Internal Medicine (License #038805 in CT)

🟢

Initial NPI Registration & Enumeration September 23, 2005

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1689660771

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: September 23, 2005

Last Update: October 02, 2013

Sole Proprietor: Yes

Update or Correct Profile

Mailing Address

2447 Whitney Ave, Suite 2a

Hamden, CT 065183211

Phone: 2032305888

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.