Dr. Tamara C. Kellogg, MD
- Medicare services, 2024
- 114
- Medicare patients, 2024
- 90
- Part D claims, 2024
- 28
- Hospital affiliations
- 3
- Medical groups
- 4
- Practice address
- 140 Lincoln Ave, Haverhill, MA 01830
- Practice phone
- Call (978) 946-8366
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Merrimack Health Haverhill Hospital
Haverhill, Massachusetts
Find Dr. Kellogg's professional email, personal email and mobile number
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Dr. Tamara C. Kellogg is an emergency medicine physician in Haverhill, Massachusetts
Dr. Kellogg practices at Merrimack Health Haverhill Hospital in Haverhill, Massachusetts.
Dr. Kellogg's NPI, 1467438069, was assigned on December 16, 2005. Dr. Kellogg graduated from Harvard Medical School in 1999. Dr. Kellogg holds Massachusetts license 216920.
- NPI
- 1467438069NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7214016062
- NPI enumeration date
- December 16, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (978) 946-8366
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Tamara C. Kellogg practices at Merrimack Health Haverhill Hospital in Haverhill, Massachusetts
Dr. Kellogg's primary practice is Merrimack Health Haverhill Hospital, at 140 Lincoln Ave, Haverhill, MA 01830 in Essex County. The practice phone is (978) 946-8366.
- Merrimack Health Haverhill Hospital140 Lincoln Ave, Haverhill, MA 01830 · Essex CountyPhone(978) 946-8366
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Tamara C. Kellogg is affiliated with 4 sites of care and 4 medical groups
Dr. Kellogg's primary practice is Merrimack Health Haverhill Hospital in Haverhill, Massachusetts. Dr. Kellogg is also affiliated with Boston Medical Center. The medical group on file is Nashoba Valley Medical Center. Dmand AI also links Dr. Kellogg to 2 more hospitals and 3 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Tamara C. Kellogg's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kellogg practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Merrimack Health Haverhill Hospital | Available with a free account |
| +3 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Tamara C. Kellogg is one of 1,483 emergency medicine physicians in Massachusetts
Emergency medicine is Dr. Kellogg's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Kellogg is licensed in Massachusetts.
Specialties and state licenses
- Emergency medicine, MassachusettsPrimary
Emergency medicine physicians near Dr. Kellogg
Counts of emergency medicine physicians 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. Tamara C. Kellogg billed Medicare for 114 services in 2024
CMS data shows 114 Medicare services from Dr. Kellogg across 4 procedure codes in 2024, for 90 Medicare patients. Medicare paid $10,931 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Kellogg's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1272024: 8335%
- Tests and treatments
- 2023: 472024: 3134%
Dr. Kellogg compared with the Massachusetts median for emergency medicine physicians, 2024
- Dr. Kellogg
- Massachusetts median
- Medicare services
- 114vs 34167% below
- Medicare patients
- 90vs 33773% below
Medians across 1,477 emergency medicine physicians in Massachusetts with Dmand AI profiles that report each measure.
Dr. Kellogg'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Tamara C. Kellogg treated 90 Medicare patients in 2024, average age 76
CMS counts 90 Medicare patients who saw Dr. Kellogg in 2024. The largest group is 75 to 84, with 31 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 38% are also on Medicaid. Their average risk score is 2.00, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Kellogg's median patient age at 51, with 55% women.
Dr. Kellogg's Medicare patients by age, 2024
Dr. Kellogg's Medicare patients by sex, 2024
- Women6168%
- Men2932%
Chronic conditions among Dr. Kellogg's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis64%
- Chronic kidney disease49%
- Diabetes48%
- Anxiety47%
- Mood disorders46%
- Depression42%
Share of Medicare patients with each condition. A patient can have several.
Dr. Kellogg's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 51
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Tamara C. Kellogg wrote 28 Medicare Part D claims in 2024
In 2024, Dr. Kellogg wrote 28 Medicare Part D claims for 19 patients. 89% of them were for generic drugs.
Dr. Kellogg's Part D claims by kind of drug, 2024
- Generic25 claims89%
- Brand-name and other3 claims11%
Drug classes CMS tracks in Dr. Kellogg's Part D claims, 2024
- Antibiotics54%15 of 28 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Tamara C. Kellogg takes part in Medicare
Dr. Kellogg 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. Tamara C. Kellogg graduated from Harvard Medical School
Dr. Kellogg graduated from Harvard Medical School in 1999.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Tamara C. Kellogg's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Tamara C. Kellogg
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What is Dr. Tamara C. Kellogg's NPI number?
Dr. Tamara C. Kellogg's NPI number is 1467438069. It was assigned on December 16, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Tamara C. Kellogg?
Dr. Tamara C. Kellogg is an emergency medicine physician in Haverhill, Massachusetts. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Tamara C. Kellogg practice?
Dr. Kellogg practices at 140 Lincoln Ave, Haverhill, MA 01830. Dr. Kellogg's primary practice is Merrimack Health Haverhill Hospital in Haverhill, Massachusetts. Dmand AI also links Dr. Kellogg to 2 hospitals and 3 medical groups.
What is Dr. Tamara C. Kellogg's office phone number?
The practice phone on file for Dr. Kellogg is (978) 946-8366.
What is Dr. Tamara C. Kellogg's medical license number?
Dr. Kellogg holds Massachusetts license 216920.
Which hospitals is Dr. Tamara C. Kellogg affiliated with?
Dr. Kellogg is affiliated with Boston Medical Center. Dmand AI links Dr. Kellogg to 2 more hospitals.
What medical group is Dr. Tamara C. Kellogg part of?
Dr. Kellogg is linked to Nashoba Valley Medical Center. Dmand AI links Dr. Kellogg to 3 more medical groups.
Does Dr. Tamara C. Kellogg accept Medicare?
Yes. CMS data shows Dr. Kellogg billed Medicare for 114 services in 2024, and Dr. Kellogg accepts Medicare assignment.
How many Medicare patients does Dr. Tamara C. Kellogg see?
CMS counts 90 Medicare patients who saw Dr. Kellogg in 2024, with an average age of 76.
What services does Dr. Tamara C. Kellogg bill to Medicare?
In 2024, Dr. Kellogg's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and emergency department visit (99284).
Where did Dr. Tamara C. Kellogg go to medical school?
Dr. Kellogg graduated from Harvard Medical School in 1999.
How long has Dr. Tamara C. Kellogg been practicing?
Dr. Kellogg graduated from medical school in 1999, 27 years ago.
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